Drilldown: Patents

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Patents > Citations from after 1930: 3-4 & Number of text pages: 2

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Office:
Inventors:
Spencer Heath (2) · Francis J. Plym (2) · Joseph Vanorio (2)
Inventor country:
Applicant person:
Spencer Heath (2) · Francis J. Plym (2)
Applicant is inventor:
Tech fields:
None (12) · propeller (12) · frame (9) · rudder (7) · military (6) · kite (6) · construction (5) · LTA (5) · propulsion (4) · helicopter (4) · airplane (4) · airfoil (4) · balloon (4) · projectile (3) · takeoff (3) · parachute (3) · landing (3) · navigation (3)
Full specification filed date:
Application number:
None (27)
Granted:
Publication date:
Related to aircraft:
Patent agent:
None (7) · None (7) · Munn & Co. (6) · Joseph F. O'Brien (2) · Joshua R. H. Potts (2) · Victor J. Evans (2) · H. C. Evert & Co. (2) · George Thorpe (2) · Eric W. Walford (2)
National tech categories:
None (34) · USPC 244/153R (4) · USPC 244/3.23 (3) · USPC 244/97 (2) · FR 6.2 (2) · FR 6.4 (2) · USPC 244/64 (2)
IPCs:
None (41) · IPC B64C3/00 (4) · IPC B64B1/00 (3) · IPC B64C31/00 (3) · IPC B64C31/06 (3) · IPC B63H1/12 (3) · IPC B64C3/56 (2) · IPC B64C13/00 (2) · IPC B64B1/62 (2)
CPCs:
CPC A63H27/08 (5) · CPC B64C3/00 (4) · CPC B64C2700/6295 (4) · CPC B64C2700/6235 (3) · CPC F05B2260/96 (3) · CPC B64C11/006 (3) · CPC Y02E10/74 (3) · CPC B64C13/00 (3) · CPC F42B10/30 (3) · CPC B64C39/08 (3) · CPC B64C27/463 (3)
First filing:
Cites these patents:
Citations from after 1930:
Number of text pages:
Number of diagram pages:

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