Drilldown: Patents

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Patents > Tech fields : flapping or propeller & Number of figures: 6

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Office:
Inventors:
None (4) · Watson F. Quinby (2) · Christian Lorenzen (2) · Charles W. Van Winkle (2) · Spencer Heath (2) · Boo Henning Wallin (2) · Harry Houlette Elliott (2) · William John Hastings Beach (2) · André Gambin (2)
Inventor country:
Inventor location:
None (68) · England (2) · London (2) · Liverpool (2) · Pennsylvania (2)
Applicant person:
None (17) · Spencer Heath (2) · William John Hastings Beach (2) · Boo Henning Wallin (2) · Watson F. Quinby (2) · Harry Houlette Elliott (2)
Applicant is inventor:
Tech fields: (Click arrow to add another value)
Full specification filed date:
Application number:
None (39)
Granted:
Related to aircraft:
Patent agent:
None (25) · Munn & Co. (6) · None (5) · Haseltine, Lake & Co. (2) · Watson E. Coleman (2) · Abel & Imray (2) · W. P. Thompson & Co. (2) · Victor J. Evans (2)
National tech categories:
None (30) · FR 6.4 (9) · USPC 244/28 (3) · USPC 244/22 (3) · AT 77d (3) · DE 77h.6 (3) · USPC 244/70 (3) · USPC 244/26 (2) · USPC 244/119 (2) · USPC 244/64 (2) · USPC 244/11 (2) · USPC 244/71 (2) · FR 6.2 (2) · USPC 244/72 (2)
CPCs:
None (20) · CPC B64C33/02 (9) · CPC B64C11/006 (7) · CPC B64B1/00 (7) · CPC B64C39/005 (5) · CPC B64C33/00 (5) · CPC B64C23/005 (4) · CPC B64C11/36 (4) · CPC Y10T29/49332 (3) · CPC B64C11/04 (2) · CPC B64C11/343 (2) · CPC B64C11/06 (2) · CPC Y10S416/03 (2)
First filing:
Cites these patents:
Citations from after 1930:
Number of text pages:
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