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Patents > National tech categories : DE 77 or USPC 244/22 & Citations from after 1930: None

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Office:
Inventors:
Ernst Georg August Baumgarten (4) · F. Gaebert (4) · Frederick William Brearey (4) · None (3) · Georg Fischer (3) · Carl Alfred Johansson (3)
Applicant person:
None (70) · Georg Fischer (3) · Ernst Georg August Baumgarten (3) · Carl Alfred Johansson (3) · F. Gaebert (3) · Raphael Ernst May (2) · Frederick William Brearey (2) · Ferdinand von Zeppelin (2) · Richard Czygan (2) · Carl Friedrich Billwiller (2) · Carl Georg Rodeck (2) · Federico Capone (2) · Henry Shepley Booth (2) · MATSON Charles I (2) · Otto Schmidt (2)
Applicant type:
Applicant is inventor:
Tech fields:
LTA (84) · propulsion (50) · navigation (40) · None (34) · frame (32) · balloon (30) · propeller (26) · flapping (23) · car (21) · airship (18) · ornithopter (16) · stability (13) · Control (12) · marine (11) · rudder (11) · dirigible (10) · captive (9) · kite (9) · wings (9)
Full specification filed date:
Application number:
None (156)
Granted:
Related to aircraft:
National tech categories: (Click arrow to add another value)
IPCs:
None (129) · IPC B64C33/02 (25) · IPC B64C33/00 (9) · IPC B64B1/00 (7) · IPC B64C31/06 (5) · IPC B64B1/58 (5) · IPC B64B1/40 (5) · IPC B64C23/00 (4) · IPC B64B1/06 (3) · IPC B64C39/00 (3) · IPC B64B1/62 (2) · IPC B64C11/00 (2)
First filing:
Cites these patents:
Citations from after 1930:
Number of diagram pages:

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