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 56 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-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)
• 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-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, Filing date: 1909-11-14)
• 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-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-1915-304639 (English title: Propeller, Filing date: 1915-11-25, Applicant firm: Kurt Fliegel Propellerbau 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-1915-311010 (English title: Protective covering for aircraft propellers, Filing date: 1915-11-27, Applicant firm: K. Mohns & E. Sohn, Luftschraubenfabrik)
• 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-1917-305040 (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-1917-324635 (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: 1917-12-06)
• Patent DE-1917-311302 (English title: Adjustable propeller, Inventors: Christian Lorenzen, Filing date: 1917-12-06)
• 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-1918-320732 (English title: Hub for adjustable propeller, Inventors: Christian Lorenzen, Filing date: 1918-04-26)
• 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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