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Patents > National tech categories : CH 129b or DE 77 or USPC 403/50

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Office:
Inventors:
Ernst Georg August Baumgarten (6) · F. Gaebert (4) · Alfred John Macy (4) · Carl Alfred Johansson (4) · None (3) · Henri Dufaux (3) · Armand Dufaux (3)
Applicant person:
None (69) · Ernst Georg August Baumgarten (6) · Carl Alfred Johansson (4) · Alfred John Macy (4) · F. Gaebert (3)
Applicant type:
Applicant is inventor:
Tech fields:
LTA (87) · propulsion (44) · airplane (37) · frame (33) · navigation (32) · balloon (31) · stability (31) · propeller (25) · design (20) · car (18) · control (17) · whole (13) · airship (13) · automatic stability (13) · None (12) · ornithopter (11) · flapping (10) · steering (10) · wings (10)
Full specification filed date:
Granted:
Supplementary to patent:
None (166) · Patent NO-1915-12-15 Carl Alfred Johansson (3)
Related to aircraft:
Assigned to:
National tech categories: (Click arrow to add another value)
IPCs:
None (131) · IPC B64C33/02 (12) · IPC B64B1/00 (11) · IPC B64B1/58 (8) · IPC B64B1/40 (5) · IPC B64C31/06 (4) · IPC B64C23/00 (4) · IPC B64C19/00 (4) · IPC B64C39/00 (3) · IPC B64B1/06 (3) · IPC B64C9/00 (2) · IPC B64C3/38 (2) · IPC B64C27/04 (2) · IPC B64C11/00 (2) · IPC B64B1/62 (2) · IPC G05D1/08 (2) · IPC B64B1/30 (2)
CPCs:
None (127) · CPC B64B1/00 (18) · CPC B64C33/02 (13) · CPC B64B1/40 (9) · CPC B64B1/58 (7) · CPC B64C33/00 (5) · CPC B64C23/005 (5) · CPC B64C2700/6273 (4) · CPC B64B1/30 (4) · CPC A63H27/08 (3) · CPC B64C19/00 (2) · CPC B64C3/385 (2) · CPC B64C27/00 (2) · CPC B64B1/62 (2) · CPC B64C31/06 (2)
First filing:
Cites these patents:
Citations from after 1930:
Number of text pages:
Number of diagram pages:

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