:LTA ?? ?? hybrid (or at least in terms of its being aerial and maritime) ?? instrument? Acceleration Advertisement Aerial Car Aerial Car* Aerial Engine* Aerial Locomotive Aerial Messenger Aerial Navigation Aerial Navigation* Aerial Observatory Aerial Propeller* Aerial Railway* Aerial Road*, infrastructure Aerial Screw Navigator Aerial Stay* Aerial Transportation* Aerial Vehicle* Aerial apparatus Aerial propulsion Aerial tramway Aerial vehicle Aeronautical propeller Aeroplane stability Aeroplane-helicopter Aerostat, Elevation(?) Aerostat, Structure Aerostatic Apparatus* Air intake Air-Ships Air-ship Airplane("aeroplane" possibly referring to blades), Lift, VTAL Airplane(?) Airplane, Construction, Design, Control, Steering, Chassis Airplane, Military Airplane, Propulsion Airplane, STRUCTURE, WING Airplane, Windscreen Airplane, frame Airplane? Airplanes Airscrew Altimeter Anchor (anchorage), Infrastructure Anchorage Ascension Astra-Torres Aviateur Roze Avion Avion(?) Balloon Construction, Texture Balloons: LTA Baumwollstoff Berthing Biblio data on espacenet says: Improvements relating to hollow metal screw propellers) Blimp Carène Churn Coleopter Curtiss Aeroplane & Motor Corporation v. United Aircraft Engineering Corporation DE 77 DE 77h Dirigible airship Dirigible, Mooring(?) Infrastructure(?) Dirigible, airfoil Drachen Drachenballon Drachenflieger Electrical Current Fahrrad Fairings Fire escape Flight Teaching Flugmaschine Flugzeug Flügelflieger Frame, Propulsion Frame, Suspension? Frame, Texture Fueling? Gas bags Gearing Goldschlägerhaut Gondel HTA Hargrave cells Helicoplane Hybrid, balloon, glider Hybrid? Hybrid? Airplane? Hydroplane ICE Illimination Illumination Infrastructure? K77h Klasse 37: Hochbauwesen. Kontrollflugzeug LTA . . . LTA assisted (?) LTA, dirigible, design, car, suspension LTA: LTA: airplane LTA: balloon LTA: car LTA: propulsion LTA? LTA? (no balloon) LTA? Airplane? LTA? Instrument? Landing? Le Compagnon Leonardo Torres Quevedo Light Luftrad Luftschiff Marine efficiency and safety Mechanical Navigable balloons Navigation (per se navigation, also pertinent to submarines) Navigation(?) Navigation, apparatus gauging information facilitating navigation Navigation, propulsion, LTA Nervure Non-LTA? Pneumatic cushioning devices for aircraft Propeller, Aerodynamics, Propulsion, stability, control Propellerhaube Propulsion, ENGINE POSITION SUSTENANCE Propulsion, LTA Propulsion, flapping(?) Propulsion, lift Propulsion, safety(?) Propulsion? Propulsion? Lift? Propulsion?, Navigation? Schraubenflieger Schwantzsteuer Segelrad Shell Stability, Navigation Steam aerostatic balloon system Steering Structure, Fuselage (wires, etc.) Subsystem, propellers Suspension, Frame? Telegraph Tendeur Texture? Time-keeping Torpedo and Propulsion, Navigation of the same Torsion Tragdeck Tragfläche Tragfläche, wings Tragflächen Tragflügel Tragkörper Tragschirm Translation Treibschraube Umbrellas Untested VTAL(?), Blades, Air Pressure VTOL Vehicle Navigation Voisin Water-wheels Wendeflügelrädern Wheels Willoughby War Hawk Wind engine Windmiill Wing and Blade Specifics (safety, accounting for isolated blade damage) Wings, Lift Wings? Flapping? X-ray Zeppelin Zugiani acetylene actuation actuators adaptation adjudicated adjustable wings advertising aerial aerial attack aerial communication aerial control aerial machine aerial observation aerial photography aerial platform aerial propeller aerial propellers aerial railroad aerial railway aerial rudder aerial stability aerial system aerial vessel aerial-aquatic aero gun aero-as-power aero-as-propulsion aerodrome aerofoil aerofoils aerofoils in place aerolane aerolanes aeronat aeronautics aeroplane aeroplane construction aeroplane descent aeroplane navigation aeroplane structural support aeroplane, construction, fabric aeroplane, foldable wings, logistics aeroplanes aeroport logistics aerostat aerostat, LTA aerostat, elevation?, propulsion? aerostation aerostats agitator agriculture aileron ailerons aiming air air blower air boat air compression air compressor air pressure air resistance air-pressure aircraft aircraft carrier aircraft construction aircraft safety airflow airfoil airfoils airplane construction airplane frame, fuselage airplane, balance airplane, fuselage airscrews airship airships altitude aluminimum aluminum amerrissage amusement anchor aneroid barometer angle angle of attack animal apparatus apparel appearance arrangement/design artillery assembly atmospheric pressure attachment attachments atuomatic stability audio automatic automatic control automatic stability automobile automobiles auxiliary planes aviation aviation, Projectile, military aviation, agriculture, industry aviation, marine aviation, navigation aviation, navigation, propulsion aviation, propulsion aviation, recreation axels balance balance? balancing ball bearings ball-and-socket ballast ballistics ballistics? ballon ballonet ballonets balloon locomotive balloon nacelle balloon navigation balloon railway balloon steering balloon suspension balloon train balloon(?) balloon, propulsion balloon-kite balloons balloons, dirigibles bamboo barometer basket battery beacon beams bearings benzene bicycle bicycle in the air bicycles biplane bird birdlike birds blade blades blower boat boats boilers bomb bombing bombs box kite bracing brake brakes braking bronze building buoyancy cabin cable cables cage camber cambered rudder camera cams canard captive captive balloon captive kite car carburetor carburetors cardan cargo cargopassenger carnival cartography catapult cells cellular celluloid cellulose cellulose acetate center of gravity centrifugal force centrifuge chaining chains chariot chassis chemical chemistry chromium churn-dasher churns circuits clinometer closure cloth clothing clutch coal coating cockpit cockpit suspension coke ovens collapsible combustion combustion engines commerce commerce, aviation communication communications compact compartments compass compressed air compression connections connector connectors construction(?), navigation(?) construction? control of propulsion control surfaces control? controls cooling cord cork cost couldn't classify coupling couplings covering covering, structure, protection cowl crankshaft cushioning cushioning-devices cybernetics cylinder cylinders dashboard deflatable deflation deformation deisgn delta wing descension descent design, marine device device control diagram direction dirigible dirigible balloon dirigibles disassembly distance distribution divided patent divided patent applications docking door doors drag draught animals drill drive dropping dual control dual use dyeing dynamo dynamometer ebonite education efficiency ejection ejection seat elastic elasticity electric electrical electricity electrics electrolysis electromagnetic electronics elevated elevated railway elevated structure elevation elevator elevators elevons empennage energy engine engine bed engines entertainment entertainment? envelope envelopes equilibrium equipment equipment storage and protection exhaust exhibition experiment explosion explosive explosives external attachments fabric fame fan fans fastener fasteners fastenings feathering feathering propeller fiber filling fins fire fire balloon fire escape ergonomics and logistics fire suppression fire-arms fire-proofing firing fitting fixed motor fixed wing fixed wing arrangements fixed wing design fixed wings fixed-wing fixed-wings flange flapping flapping wings flapping(?) flaps flare flexibility float floats flotation fluid fluid compressor fluid flow fluid pressure fluid resistance fluids flying boat flying boats flying machine flying machines flying saucer flying wing flywheel foldable wings folding folding wings framework freight fuel fuel injection fuel tank fueling fuels fun fun? furnaces fuselage fuselage ribs fuselages fusiform gas gas bag gas bag compartments gas engine gas management gas pressure gas valve gas valves gas-bag gas-bag car gasbag gasoline gauchissement gauge gauges gear gears girder girders glider glider, powered gliders gliding goldbeater's skin gondola gravity grenade grooves ground ground equipment ground facilities ground installations ground structures ground transport ground transportation ground travel ground vehicles guidance systems gun gun harpoons gunpowder guns gutta percha gyro-compass gyroplane gyroscope gyroscopes gyrostat gyrostats habitation hand tool hand tools handles hang gliders hangar hangars harness health heavier-than-air helicopter helicopter? helicopters helicopters? hinge hinges hitch hollow hollow metal hook hooks horizontal stability hot air hot air balloon hover hovering hull hulls human powered human-powered human-powered? hunting hybrid engine hybrid(?) hybrid? Passenger-carrying kite hybrid?, safety, SPECIAL hybrids hydraulic hydraulic propeller hydraulics hydro-aeroplane hydro-aeroplanes hydroaeroplane hydroaeroplanes hydrodynamics hydroeaeroplane hydrogen hydroplanes hydrotriplane hygrometer hyroplanes hélice ignition impeller impellers implements incapotable incidence inclinometer indicator indicators industry inflatable inflating inflation infrastructure instrument instrument? instrumentation instruments internal combustion internal combustion engine internal combustion engines invisibility iron its physical security jet jet nozzles ejecting gases jets joining mechanisms joints keel kitchen kite kite (for human transport) kite balloon kite-balloon kites kites, military ladder land vehicles landing landing carriage landing device landing frame landing gear landing-gear lannding launch launching leather lever levers life boat lift lift, propulsion lift, stability light parts lighting lights loading logistics longerons longitudinal stability looms lubrication machine machine gun machine tools machinery magnet mail mail delivery manufacture manumotive map marine control marine navigation marine propeller marine propellers marine propulsion marine structures marine? marne material materials measurement mechanical mixer medicine metal metal coating metal forming metal sheets metallurgy meteo meteorology method military missile missiles mixer model model aeroplane modular monitoring monoplane monoplanes mooring mooring, hangar, safety, infrastructure(?) motor motorcycle motors mounting mounting? movable muffler multi-winged multiplane multiplane? multiplanes multiple wings multipurpose multiwing music nacelle navigation, aerostat navigation, propulsion navigation, transmission navigation, transportation navigation? netting nitrogen noise non-rigid nonrigid oars optical optics ordnance orientation ornithopter ornithopter, flapping ornithopter? ornithopter? flapping ornithopters orthopter orthopter? helicopter? oscillation overall design paddle wheel paddle wheels paddle-wheel paddle-wheel, marine paddle-wheels paddles paddlewheel palladium paper parachute parachutes passenger passengers pedal pedaling pendulum personal petroleum phonographs photography photography, LTA, electronics physiology pilot pilot balloons piloting pisciform piston pistons pivoting pivoting wings? plane planetary gear plastic platform pliability plow pneumatic pneumatics port portable possibly flapping postal balloon power powered powered glider pressure printing process projectile projectile, military projectiles propeller blade propeller blades propeller covering propeller hubs propeller shaft propellers, ascension propulsion(?) propulsion, ascension-descension propulsion, elevation propulsion, navigation, frame propulsion, particularly initial propulsion propulsion, ventilation pulley pulleys pump quille radiator radiators radio radioactivity railroad railway railways rame range finder range finders rarefaction reaction reaction drive reaction engine reconnaissance recreation reduced drag remote remote control remote navigation renewed patent repair rescue ribs ride rigid rigid airships road vehicle rocket rocking plane rods roll rolling mills rope ropes rotary engine rotary fans rotary motor rotary wings rotor rotorcraft rotors rubber rudders sacs safety, balloon safety, rescue sail sail-wheel sailing sailplane sails scaffolding scientific scouting screw screw propeller screw propellers seaplane seaplanes seating sectional security self-acting semi-rigid sensor sensors servomotors shape shearers sheet metal ship shippable shock shock absorber shock absorbers shock-absorber shock-absorbers shock-absorption shooting sighting signaling signalling signals signing silk silver simulator skeleton ski skids slip small parts snow soaring socket spar spark plug spars special specifications spectacle speed speedometer spring springs stability? stabiliy stabilization stabilizer starter starting stationary surface stays steadying steam steam engine steam engines steam propulsion steel steerable stonework stopping storage streamlined streamlining strength stringers structs structural structural integrity structure structure, frame structures strut struts submarine submarine vessels subsystems surface surfaces surveillance surveying susbsystem suspension sustentation sustention switch system of connection and disconnection flour mills, furnace, boiler, engine apparatus, and aerial propellers tail tail assembly tail fin tail-planes tailplane tailplanes take-off takeoff tandem tandem planes tandem wings tandem wings? tank teaching telegraphy telephones telescope telescoping temperature tension tension wires tension-motor tensioning testing tether textile texture texture(?) theory tilted propellers tool tools torage torpedo torpedoes toy toys track traction tractor train training transmission transmission of mechanical power transmission? transport transportable transportation travel on ground treads triplane trolley truss turbine turning umbrella undercarriage universal joint user interface utility vacuum valve valves vanes variable incidence variable incidence airfoils variable incidence wings? variable-pitch vehicle vehicle construction vehicles velocipede velocity velocity measurement vent ventilation ventilator vertical lift vertical rudder visibility warping water water propellers water wheel water wheels water-wheel watercraft weighing weight wheel wheels aeroplane whiffletrees whirligig whirling arm whole whole aeroplane wind wind power wind screen wind tunnel wind wheel wind wheels wind-wheel wind-wheels windmill windmills windscreens windshield wing wing arrangement wing design wing tip wing warping wing(?) wing-warping winglets wings(?) wings(flapping) wings,airplane wings? wingss wingtips wire wireless telegraphy wires wood wood materials woodwork yoke balloon construction
Year granted:
Tech fields: (Click arrow to add another value)
& Supplementary to patent 
