Drilldown: Patents

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Patents > National tech categories : DE 77h.6 or USPC 244/13 & Number of text pages: 2-8

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Office:
Inventors:
None (15) · Jakob Haw (5) · Christian Lorenzen (4) · Hellmuth Hirth (4)
Inventor country:
Applicant person:
None (26) · Jakob Haw (5) · Christian Lorenzen (2) · Hellmuth Hirth (2)
Applicant is inventor:
Tech fields:
propeller (40) · propulsion (17) · Airplane (14) · frame (11) · Propellers (10) · navigation (9) · stability (8) · wheels (5) · rudder (5) · takeoff (4) · subsystem (4) · parachute (4) · design (4) · helicopter (3) · metal (3) · construction (3) · car (3)
Full specification filed date:
Application number:
None (33)
Granted:
Related to aircraft:
National tech categories: (Click arrow to add another value)
CPCs:
CPC B64C2700/6295 (15) · None (10) · CPC B64C39/08 (9) · CPC B64C11/04 (6) · CPC B64C11/36 (4) · CPC B64C11/00 (4) · CPC B64C11/20 (4) · CPC B64C2700/6281 (3) · CPC B64C27/20 (3) · CPC B64C11/24 (3) · CPC B64C11/065 (2) · CPC B64C11/006 (2) · CPC B21D53/78 (2) · CPC Y10S244/903 (2) · CPC B64C11/346 (2) · CPC B64C11/22 (2) · CPC B64C3/42 (2) · CPC B64C11/205 (2) · CPC B64C39/00 (2)
First filing:
Cites these patents:
Citations from after 1930:
Number of text pages:
Number of diagram pages:

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