Drilldown: Patents

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Patents > Publication date: 0 - 99 & Assigned to : William B Keep or None

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Inventors:
Ziégler (2) · Charles M. BROWN (2) · Thomas GRIFFITHS (2) · James G. Hope (2)
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Tech fields:
LTA (14) · propulsion (10) · None (9) · military (9) · navigation (6) · frame (4) · airplane (4) · balloon (4) · marine (3) · wings (3) · brakes (2) · kite (2) · wheels (2) · aerodynamics (2) · propeller (2) · ornithopter (2) · helicopter (2) · dirigible (2) · flapping (2)
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National tech categories:
None (29) · FR 6.3 (6) · USPC 244/3.3 (3) · USPC 244/73R (2) · DE 77 (2)
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Citations from after 1930:
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Showing below up to 68 results in range #1 to #68.

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