DE 77h.6

DE 77h, group 6 (which we compress to DE 77h.6) is one of the categories used for aeronautics in Germany after around 1890 or 1896. DE 77 may still be "Sport" at this time. This group appears to be for aerial propellers, but we don't know of hard documentation of its definition. This wiki has 83 patents in category "DE 77h.6". Other techtypes related to DE 77h.6: Propellers

Patents in category DE 77h.6

• Patent DE-1904-173595 (English title: Propulsion apparatus for air- and water-craft, and for other transport-vehicles, Inventors: Hermann Hoernes, Filing date: 1904-12-01)
• Patent DE-1905-175477 (English title: Improvement of screw propellers, Inventors: Joseph Hofmann, Supplementary to patent: Patent DE-1902-141656, Filing date: 1905-06-05)
• Patent DE-1906-175478 (English title: Innovation in flying machines -or- flying machines with air tanks, Inventors: Joseph Hofmann, Filing date: 1906-01-03)
• Patent DE-1906-194121 (English title: Propeller, Inventors: Emil Berghaus, Filing date: 1906-06-03)
• Patent DE-1906-214864 (English title: Impeller with cover, Inventors: Conrad Steiner, Filing date: 1906-06-05)
• Patent DE-1906-188564 (English title: Flying device with lifting screws and surfaces arranged under them, Inventors: Jules Cornu • Paul Cornu, Supplementary to patent: Patent FR-1905-357917, Filing date: 1906-08-27)
• Patent DE-1907-202812 (English title: Propeller screw which can be adjusted indepenently from the drive shaft, Inventors: Harry Martin Middleton, Supplementary to patent: Patent GB-1906-1436, Filing date: 1907-01-15)
• Patent DE-1907-194165 (English title: Non-rigid air-screw with fly weights, Filing date: 1907-04-18, Applicant firm: Motorluftschiff Studiengesellschaft m.b.H)
• Patent DE-1907-208215 (English title: Screw for flying machines, airships and the like, Inventors: Adolf (Arthur) Hein, Filing date: 1907-08-05)
• Patent DE-1907-203785 (English title: Propeller, Inventors: Louis Gathmann, Filing date: 1907-08-25)
• Patent DE-1909-210633 (English title: Motor with inverse crank-rotation in propeller-screw axis for airship, motorboat, ventilator, etc., Inventors: Guido Wünsch • Hans Lewald, Filing date: 1907-10-26)
• Patent DE-1907-222868 (English title: Propeller-driven airplane, Inventors: Emil Neyen, Filing date: 1907-11-05)
• Patent DE-1907-221458 (English title: Helicopter with movable parachute, Inventors: Otto von Krempelhuber, Filing date: 1907-12-19)
• Patent DE-1908-214229 (English title: Airscrew, Inventors: Paul Frederik Degn, Supplementary to patent: Patent DE-1907-214228, Filing date: 1908-03-11)
• Patent DE-1908-227004 (English title: Propellers with with ring-like wreaths, Inventors: Hermann Ruthenberg, Filing date: 1908-04-08)
• Patent DE-1908-210933 (English title: Wing for airscrews, Inventors: Paul Frederik Degn, Filing date: 1908-06-25)
• Patent DE-1908-243783 (English title: Apparatus for driving aerial propellers using two-stroke motors, Inventors: Max Bartha • Josef Madzsar, Filing date: 1908-10-17)
• Patent DE-1909-250960 (English title: Aircraft with parachute-like arrangement of airscrews, Inventors: Christian Lorenzen, Supplementary to patent: Patent GB-1908-13809, Filing date: 1909-01-16)
• Patent DE-1911-240603 (English title: Airscrew with chamber-type shovels, Inventors: Eduard Riedel, Filing date: 1909-01-24)
• Patent DE-1909-224053 (English title: screw propeller, Inventors: Hans Reissner, Filing date: 1909-08-13)
• Patent DE-1909-245260 (English title: Wooden propeller made from lamellae glued to each other, Inventors: Lucien Chauvière, Supplementary to patent: Patent FR-1908-405961, Filing date: 1909-11-13)
• Patent DE-1909-244211 (English title: Wooden aircraft propeller, Inventors: Lucien Chauvière, Supplementary to patent: Patent FR-1908-405961, Filing date: 1909-11-13)
• Patent DE-1909-245920 (English title: Propeller blade, Filing date: 1909-11-18, Applicant firm: Rheinisch-Westfälische Sprengstoff-Aktien-Gesellschaft)
• Patent DE-1909-258743 (English title: Screw propeller for air- and watercraft with adjustable radial and peripheral slope, Filing date: 1909-11-18, Applicant firm: Rheinisch Westfaelische Sprengstoff Aktien-Gesellschaft • Rheinisch Westfaelische Sprengstoff A.-G.)
• Patent DE-1909-245921 (English title: Apparatus for controlling the position of aircraft propeller blades, Inventors: Emanuel Spreekmeester • Simon Wynberg, Filing date: 1909-12-08)
• Patent DE-1909-236836 (English title: Propeller, Inventors: Hugo Drotschman, Filing date: 1909-12-15)
• Patent DE-1910-236694 (English title: Wood propellers for aircraft, Filing date: 1910-02-14, Applicant firm: Borrmann and Kaerting)
• Patent DE-1910-245123 (English title: Propeller, Inventors: C. Bütow, Filing date: 1910-03-02)
• Patent DE-1910-236961 (English title: Propeller, especially for water- and aircraft, with laterally tapered blades, Inventors: Fritz H. Grawert, Filing date: 1910-03-04)
• Patent DE-1910-243835 (English title: Propeller for water- and aircraft, Inventors: Alexander Polestchuk, Filing date: 1910-04-20)
• Patent DE-1910-243732 (English title: Airship for which the machine and attached propeller can be moved opposite the balloon in the horizontal plane, Inventors: Aladar de Bajza, Supplementary to patent: Patent GB-1909-18116, Filing date: 1910-07-29)
• Patent DE-1910-245481 (English title: Aerial propeller, the wings of which can be oriented around the longitudinal axis through a rack-and-pinion drive in order to change the angle of inclination, Inventors: Rudolf Damm, Filing date: 1910-08-22)
• Patent DE-1910-247715 (English title: Propeller blade for helicopters, arranged to function as airfoils when the propulsion system is oriented toward horizontal movement, Inventors: Otto Schmidt, Filing date: 1910-09-25)
• Patent DE-1911-240602 (English title: Clutch for airscrew, Inventors: Maximilian Goldberger, Filing date: 1910-10-25)
• Patent DE-1910-262731 (English title: Screw glider with several small, rapidly rotating propellers and below the center plane, Inventors: Hans Peters, Filing date: 1910-11-11)
• Patent DE-1911-243836 (English title: Emergency propeller for aircraft, Inventors: Johannes Pietzsch, Filing date: 1911-04-06)
• Patent DE-1911-248770 (English title: Screw for aircraft and watercraft, the wings of which are attached to a ring, Inventors: André-Julien Mahoudeau, Supplementary to patent: Patent FR-1910-423792, Filing date: 1911-04-21)
• Patent DE-1911-330185 (English title: Propulsion device for aircraft with multiple engines and multiple propellers, Inventors: Gaston Rose, Filing date: 1911-06-21)
• Patent DE-1911-251309 (English title: Process for making hollow, light, resilient metal propellers, Inventors: Pierre Jacomy • François Jahan, Filing date: 1911-08-17)
• Patent DE-1912-260829 (Inventors: Hellmuth Hirth, Filing date: 1912-11-12)
• Patent DE-1914-304039 (English title: Propeller attachment, Inventors: Jean Goebel, Filing date: 1914-08-25)
• Patent DE-1915-318431 (English title: Steering apparatus for airplanes with multiple propellers, Inventors: Reinhard Mannesmann, Filing date: 1915-03-01)
• Patent DE-1915-300200 (English title: Propeller, Inventors: Jakob Haw, Filing date: 1915-09-11)
• Patent DE-1915-334826 (English title: Propeller with adjustable pitch, Filing date: 1915-10-12, Applicant firm: Helix Propeller G.m.b.H.)
• Patent DE-1915-303500 (English title: Shatter-proof propeller, Filing date: 1915-11-25, Applicant firm: Kurt Fliegel Propellerbau G.m.b.H.)
• Patent DE-1915-304639 (English title: Propeller, Filing date: 1915-11-25, Applicant firm: Kurt Fliegel Propellerbau G.m.b.H.)
• Patent DE-1915-311010 (English title: Protective covering for aircraft propellers, Filing date: 1915-11-27, Applicant firm: K. Mohns & E. Sohn, Luftschraubenfabrik)
• Patent DE-1916-324135 (English title: Airplane propellers, Inventors: Carl Leich, Filing date: 1916-03-25)
• Patent DE-1916-309361 (English title: Frame for propeller, Inventors: Jakob Haw, Filing date: 1916-04-12)
• Patent DE-1916-332539 (English title: Aircraft propeller, Inventors: Jakob Haw, Filing date: 1916-04-14)
• Patent DE-1916-332540 (English title: Propeller whose blades consist of transverse bars lined up on steel rods, Inventors: Jakob Haw, Filing date: 1916-04-30)
• Patent DE-1916-332541 (English title: Propeller, Inventors: Jakob Haw, Supplementary to patent: Patent DE-1916-332540, Filing date: 1916-07-01)
• Patent DE-1916-341424 (English title: Propeller drive for aircraft, Supplementary to patent: Patent AT-1916-87037, Filing date: 1916-07-02, Applicant firm: Österreichische Daimler Motoren A. G.)
• Patent DE-1916-347803 (English title: Propellers for air and water vehicles, Inventors: Curt Pinkert, Filing date: 1916-09-24)
• Patent DE-1916-368721 (English title: Wing profile for wings and for propellers for air and water, Inventors: Curt Pinker, Filing date: 1916-09-24)
• Patent DE-1916-304238 (English title: Hollow sheet metal propeller, Filing date: 1916-10-22)
• Patent DE-1916-326431 (English title: Propellers for aircraft, Inventors: Oszkár Asbóth, Supplementary to patent: Patent AT-1916-07-22 Oszkár Asbóth, Filing date: 1916-12-20)
• Patent DE-1917-328800 (English title: Method for adjusting adjustable and reversible propellers, Filing date: 1917-01-03, Applicant firm: Helix Propeller G.m.b.H.)
• Patent DE-1917-305040 (English title: Apparatus for altering the wing pitch of aircraft propellers, Inventors: Christian Lorenzen, Filing date: 1917-01-30)
• Patent DE-1917-305739 (English title: Propeller hood attachment for airplanes, Inventors: Reinhold Richter, Filing date: 1917-02-01)
• Patent DE-1917-333471 (English title: Apparatus for altering wing pitch of aircraft propellers, Inventors: Christian Lorenzen, Supplementary to patent: Patent DE-1917-305040 • Patent DE-1917-323641, Filing date: 1917-02-01)
• Patent DE-1917-310407 (English title: Aerial propeller with automatically adjusting angle, Filing date: 1917-02-07, Applicant firm: Garuda Flugzeug- und Propellerbau G. m. b. H.)
• Patent DE-1917-331773 (English title: Arrangement of propellers on a pressed steel tube with ends of gradually diminishing wall thickness, Inventors: Hellmuth Hirth, Filing date: 1917-03-08)
• Patent DE-1917-323641 (English title: Apparatus for altering the wing pitch of aircraft propellers, Inventors: Christian Lorenzen, Supplementary to patent: Patent DE-1917-305040, Filing date: 1917-04-24)
• Patent DE-1917-327958 (English title: Electrically reversible propeller, Inventors: Hellmuth Hirth, Filing date: 1917-05-30)
• Patent DE-1917-328801 (English title: Blade attachment for controllable pitch and reversing propeller, Filing date: 1917-08-25, Applicant firm: Helix Propeller G.m.b.H.)
• Patent DE-1917-362850 (English title: Propeller plane, Inventors: Franz Bernards, Filing date: 1917-09-13)
• Patent DE-1917-324635 (English title: Airplane propeller, Filing date: 1917-10-26, Applicant firm: Allgemeine Elektricitäts-Gesellschaft)
• Patent DE-1917-311050 (English title: Hollow metal aircraft propeller, Inventors: Jakob Kreitmayer, Filing date: 1917-12-05)
• Patent DE-1918-320985 (English title: Attachment to wooden wing for propeller with metal hub, Inventors: Christian Lorenzen, Filing date: 1918-01-13)
• Patent DE-1918-326211 (English title: Drive with hydraulic power transmission for screw propellers of vehicles, especially aircraft, Filing date: 1918-02-12, Applicant firm: Mercur Flugzeugbau)
• Patent DE-1918-341426 (English title: Counter propeller with movable blades, Inventors: Rudolf Wagner, Filing date: 1918-03-08)
• Patent DE-1918-383744 (English title: Aircraft with rotating wings or lifting surface, Inventors: Konrad R. Ritter, Filing date: 1918-03-19)
• Patent DE-1918-352425 (English title: Controllable pitch propellers, Filing date: 1918-04-21, Applicant firm: Helix Propeller G.m.b.H.)
• Patent DE-1918-390783 (English title: Blade mounting, in particular for a controllable pitch propeller, Inventors: Erwin Wesnigk, Filing date: 1918-04-21)
• Patent DE-1918-320732 (English title: Hub for adjustable propeller, Inventors: Christian Lorenzen, Filing date: 1918-04-26)
• Patent DE-1918-328802 (English title: Propeller setting tool, Filing date: 1918-06-12, Applicant firm: Helix Propeller G.m.b.H.)
• Patent DE-1918-327778 (English title: Adjustable or self-regulating propeller, Filing date: 1918-08-28, Applicant firm: Helix Propeller G.m.b.H.)
• Patent DE-1918-347577 (English title: Steel tube propeller, Inventors: Hellmuth Hirth, Filing date: 1918-09-18)
• Patent DE-1918-332427 (English title: Aircraft propeller with rotating wings along the propeller shaft, Inventors: Jakob Haw, Filing date: 1918-10-26)
• Patent DE-1918-341335 (English title: Propulsion shaft, especially for aircraft, Filing date: 1918-11-12, Applicant firm: Zahnradfabrik G.m.b.H.)
• Patent DE-1919-332428 (English title: Braking propeller?, Inventors: Jakob Haw, Filing date: 1919-01-22)
• Patent DE-1919-324428 (English title: Pressing-process for hollow metal bodies, especially aerial propellers, Inventors: Eugen Ludwig Müller, Filing date: 1919-06-12)

Enclosing categories	DE 77h, DE 77
Subcategories
Keywords	Propeller
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End year