Drilldown: Patents

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Patents > Grant date: 1920 - 1929 & Number of text pages: 3-5 & Number of figures: 5-6

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Year granted:
Office:
Inventors:
None (4) · Walter H. Phipps (2) · Lawrence Burst Sperry (2) · Federico Caproni (2) · Clarence Ernest Holt (2)
Inventor country:
Applicant person:
None (9) · Walter H. Phipps (2) · Lawrence Burst Sperry (2) · Clarence Ernest Holt (2)
Applicant is inventor:
Tech fields:
airplane (17) · propellers (7) · frame (7) · design (7) · construction (7) · landing (5) · whole (4) · subsystem (4) · helicopter (4) · fuselage (4) · None (3) · chassis (3) · propulsion (3) · LTA (3) · aerial propeller (3) · control (3) · Instrument (3) · wings (3)
Filing date:
Full specification filed date:
Application number:
None (12)
Granted:
Publication date:
Related to aircraft:
CPCs:
None (7) · CPC B64C3/00 (3) · CPC B64F2700/6226 (3) · CPC B64C17/00 (2) · CPC B64C27/04 (2) · CPC B64C25/62 (2) · CPC B64C35/00 (2) · CPC B64C25/06 (2) · CPC B64C23/005 (2) · CPC B64C2700/6274 (2) · CPC B64C2001/0063 (2) · CPC B64C2700/6295 (2) · CPC B64C2700/6233 (2) · CPC B64C13/12 (2) · CPC B64C29/0025 (2) · CPC B64C11/24 (2) · CPC B64C1/00 (2) · CPC B64B1/58 (2)
First filing:
Citations from after 1930:
Number of text pages:
Number of diagram pages:
Number of figures:

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