Drilldown: Patents

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Patents > Year filed: 1870 - 1879 & Family year: 1800 - 1899 & Number of text pages: 2-3

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Office:
Inventors:
Ernst Georg August Baumgarten (2) · Comte Antoine Apraxine (2) · Georg Fischer (2)
Inventor country:
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Applicant is inventor:
Tech fields:
propulsion (15) · LTA (14) · propeller (7) · navigation (6) · flapping (5) · marine (5) · human-powered (5) · Airplane (4) · hybrid (4) · frame (4) · projectile (3) · military (3) · None (3) · balloon (3) · car (3)
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Related to aircraft:
National tech categories:
None (9) · DE 77 (8) · USPC 244/28 (2) · USPC 244/3.23 (2)
CPCs:
CPC B64B1/00 (4) · CPC B64C39/005 (3) · CPC B64C27/54 (3) · CPC B64B1/58 (2) · CPC F42B10/30 (2) · CPC F03D11/00 (2) · CPC B64C33/02 (2) · None (2) · CPC B64B1/40 (2)
First filing:
Cites these patents:
Citations from after 1930:
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