Drilldown: Patents

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Patents > Inventor country : US or None & Related to aircraft: Partially & Family year: 1800 - 1899

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Tech fields:
military (13) · projectile (11) · propeller (9) · propulsion (7) · Windmill (5) · marine (4) · paddle-wheel (4) · LTA (4) · paddle wheels (4) · safety (2) · fun (2) · blades (2) · balloon (2) · feathering (2)
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None (19) · USPC 244/3.23 (6) · USPC 244/3.3 (3) · USPC 102/371 (2) · USPC 416/108 (2) · USPC 416/112 (2) · FR 6.2 (2)
CPCs:
CPC B64C11/006 (9) · None (9) · CPC F42B10/30 (5) · CPC Y02E10/72 (4) · CPC B63H1/04 (3) · CPC F05B2260/74 (3) · CPC B64C27/54 (2) · CPC A63H33/20 (2) · CPC F03D9/001 (2) · CPC B64C11/06 (2) · CPC B64C11/36 (2)
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