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Patents > Citations from after 1930: 2-4 & Number of text pages: 2 & Number of figures: 2-6

Use the filters below to narrow your results.

Office:
Inventors:
Spencer Heath (3) · None (2) · Francis J. Plym (2)
Inventor country:
Applicant person:
None (3) · Spencer Heath (3) · Francis J. Plym (2)
Applicant is inventor:
Tech fields:
propeller (20) · None (17) · frame (12) · airplane (11) · LTA (10) · kite (9) · military (9) · parachute (9) · propulsion (9) · construction (7) · rudder (7) · navigation (6) · Stability (5) · propellers (5) · Projectile (5)
Full specification filed date:
Application number:
None (54)
Granted:
Publication date:
Related to aircraft:
Patent agent:
None (14) · Munn & Co. (7) · Victor J. Evans (6) · None (6) · Marks & Clerk (3) · Herbert Haddan & Co. (2) · George Thorpe (2) · Christy and Christy (2) · H. C. Evert & Co. (2) · Armengaud jeune (2) · Joshua R. H. Potts (2) · C. Bauman (2)
National tech categories:
None (48) · FR 6.4 (7) · USPC 244/3.23 (6) · USPC 244/153R (4) · USPC 244/119 (3) · USPC 244/60 (2) · USPC 416/113 (2) · USPC 244/64 (2) · USPC 244/63 (2) · FR 20.1 (2) · USPC 244/155R (2) · USPC 244/35R (2)
IPCs:
None (72) · IPC B64C31/06 (5) · IPC B64C3/00 (5) · IPC B64C31/00 (4) · IPC B64C39/00 (3) · IPC B64B1/00 (3) · IPC B64C23/00 (3) · IPC B63H1/12 (2) · IPC B64C25/00 (2) · IPC B64C11/20 (2) · IPC B64C33/00 (2)
CPCs:
CPC A63H27/08 (7) · CPC B64C3/00 (6) · CPC B64C13/00 (6) · CPC Y02E10/74 (5) · CPC B64C2700/6295 (5) · CPC B64C27/54 (5) · CPC B64C11/006 (5) · CPC B64B1/00 (4) · CPC F42B10/30 (4) · CPC F05B2260/96 (4) · CPC F03D3/00 (4) · CPC B64C39/08 (4) · CPC B64C27/463 (4) · CPC B64C23/005 (4) · CPC B64C11/48 (4) · None (4) · CPC F05B2260/74 (3)
First filing:
Citations from after 1930:
Number of text pages:
Number of diagram pages:
Number of figures:

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