Drilldown: Patents

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Patents > IPCs : IPC B64C3/56 or None & Family year: 1912 & Number of claims: None

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Tech fields:
None (392) · airplane (59) · stability (22) · design (20) · propellers (17) · construction (12) · wings (11) · automatic stability (11) · propulsion (11) · frame (10) · navigation (8) · equilibrium (8) · airship (8) · Aerodynamics (8) · hybrid (7) · control (7)
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None (281) · BE K (30) · FR 6.4 (10) · HU V/h (9) · USPC 244/139 (9) · USPC 244/147 (8) · USPC 244/48 (6) · USPC 244/45R (4) · USPC 244/80 (4) · USPC 244/234 (4) · USPC 244/119 (4) · USPC 244/233 (4) · USPC 244/90R (4)
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CPCs:
None (136) · CPC B64C17/00 (41) · CPC B64C2700/6295 (40) · CPC B64C39/00 (23) · CPC B64C13/00 (22) · CPC B64C23/005 (17) · CPC B64C33/02 (14) · CPC B64C3/385 (13) · CPC B64C35/00 (12) · CPC B64B1/00 (11) · CPC B64C2700/6218 (10) · CPC B64C3/00 (8) · CPC B64C2700/6212 (8) · CPC B64C3/14 (8) · CPC B64C2700/6214 (7) · CPC B64C31/04 (6) · CPC B64C2700/6256 (6) · CPC B64C2700/6274 (6)
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