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Patents > National tech categories : DE 77h.6 or USPC 244/177 & Cites these patents: None

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Office:
Inventors:
None (12) · Christian Lorenzen (7) · Jakob Haw (7) · Alfred John Macy (6) · Hellmuth Hirth (4) · Joseph Hofmann (2) · Alexander Blair Thaw (2) · Lucien Chauvière (2) · Paul Frederik Degn (2)
Inventor country:
Applicant person:
None (29) · Alfred John Macy (6) · Jakob Haw (5) · Joseph Hofmann (2) · Alexander Blair Thaw (2) · Lucien Chauvière (2) · Christian Lorenzen (2) · Paul Frederik Degn (2) · Hellmuth Hirth (2) · Hans Reissner (2)
Applicant is inventor:
Tech fields:
propeller (49) · stability (18) · propulsion (16) · Airplane (14) · automatic stability (10) · Propellers (9) · subsystem (6) · None (5) · frame (5) · navigation (5) · helicopter (5) · metal (4) · marine (4) · electricity (3) · electronics (3) · balance (3)
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Related to aircraft:
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CPCs:
None (16) · CPC B64C17/00 (13) · CPC B64C11/20 (6) · CPC B64C1/00 (5) · CPC B64C11/006 (5) · CPC B64C11/04 (5) · CPC Y10S200/29 (4) · CPC B64C11/00 (4) · CPC B64C2700/6281 (3) · CPC B64C27/20 (3) · CPC G05D1/0061 (3) · CPC B64C11/24 (3) · CPC B64C11/34 (2) · CPC B64C11/22 (2) · CPC B64C11/205 (2) · CPC B64C11/16 (2) · CPC B21D53/78 (2)
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Citations from after 1930:
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