Drilldown: Patents

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Patents > Year granted: 1870 - 1879 & Granted: Yes & Number of text pages: 2

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LTA (12) · propulsion (11) · human-powered (6) · navigation (6) · propeller (6) · flapping (6) · frame (5) · marine (4) · balloon (4) · hybrid (3) · Airplane (3) · military (3) · parachute (3) · car (3) · projectile (3)
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None (7) · DE 77 (3) · USPC 244/64 (2) · USPC 244/22 (2) · USPC 244/3.23 (2)
CPCs:
CPC F03D11/00 (3) · CPC B64B1/00 (3) · CPC B64C39/005 (3) · CPC B64B1/40 (2) · CPC Y02E10/722 (2) · CPC B64C33/02 (2) · CPC F42B10/30 (2) · CPC B64C11/346 (2)
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