Drilldown: Patents

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Patents > Grant date: 1870 - 1879 & Number of figures: 3-4

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propulsion (10) · LTA (8) · propeller (5) · marine (5) · flapping (4) · projectile (4) · military (4) · frame (3) · windmills (3) · car (3) · navigation (2) · balloon (2) · gas (2) · hand tool (2) · human-powered (2) · steam (2) · paddle-wheel (2)
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CPC B64B1/00 (3) · None (2) · CPC B64C11/04 (2) · CPC Y02E10/74 (2) · CPC F42B10/30 (2) · CPC F16B2200/40 (2) · CPC F16B2/02 (2) · CPC B64C27/54 (2) · CPC B64C27/322 (2) · CPC B64C11/36 (2) · CPC Y10T403/4677 (2) · CPC B64C11/006 (2)
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