Drilldown: Patents

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Patents > Year filed: 1860 - 1869 & Inventor country: US & Number of figures: 1-4

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Office:
Inventors:
William R. Manley (2) · William H. Holland (2)
Inventor country: (Click arrow to add another value)
Applicant person:
None (4) · William H. Holland (2)
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Tech fields:
military (9) · marine (9) · LTA (9) · projectile (8) · propeller (7) · propulsion (7) · navigation (4) · balloon (4) · Paddle wheel (4) · kite (4) · paddle-wheel (3) · rudder (2) · human-powered (2) · sail (2) · paddle-wheels (2) · churns (2) · flapping (2) · Churn (2) · car (2)
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National tech categories:
None (13) · USPC 244/3.23 (6) · USPC 416/194 (4) · USPC 244/153R (3) · USPC 244/30 (2) · USPC 244/127 (2)
First filing:
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