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Patents > National tech categories : DE 77h.6 or USPC 139/413 or USPC 244/30

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Office:
Inventors:
None (12) · Christian Lorenzen (7) · Jakob Haw (7) · Hellmuth Hirth (4) · Paul Frederik Degn (2) · Stewart Cairncross (2) · Albert Livingstone Blackman (2) · Eugene F. Falconnet (2) · Joseph Hofmann (2) · Lucien Chauvière (2)
Inventor country:
Applicant person:
None (34) · Jakob Haw (5) · Paul Frederik Degn (2) · Lucien Chauvière (2) · Albert Livingstone Blackman (2) · Hellmuth Hirth (2) · Hans Reissner (2) · Christian Lorenzen (2) · Eugene F. Falconnet (2) · Joseph Hofmann (2)
Applicant is inventor:
Tech fields:
propeller (61) · LTA (55) · propulsion (34) · navigation (24) · balloon (17) · frame (17) · car (15) · None (13) · safety (11) · Propellers (9) · airplane (8) · rudder (8) · marine (7) · parachute (6) · subsystem (6) · dirigible (6) · helicopter (5) · compartments (5) · stability (5)
Full specification filed date:
Application number:
None (74)
Granted:
Related to aircraft:
National tech categories: (Click arrow to add another value)
CPCs:
CPC B64B1/00 (62) · None (16) · CPC B64C11/20 (6) · CPC B64C11/006 (5) · CPC B64C11/04 (5) · CPC B64C11/00 (4) · CPC B64C2700/6281 (3) · CPC B64C27/20 (3) · CPC B64C11/24 (3) · CPC B64C11/22 (2) · CPC B64C11/205 (2) · CPC B64C11/16 (2) · CPC B64C11/34 (2) · CPC B21D53/78 (2) · CPC B64B1/02 (2)
First filing:
Cites these patents:
Citations from after 1930:
Number of text pages:
Number of diagram pages:

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