Drilldown: Patents

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Patents > Applicant firm: None & Citations from after 1930: 3 & Number of figures: 5-12

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Spencer Heath (2) · Paul de Crèquy (2)
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Tech fields:
None (7) · frame (7) · propeller (7) · propulsion (6) · rudder (5) · stability (4) · helicopter (4) · airfoil (4) · navigation (3) · LTA (3) · wheels (2) · cargo (2) · flapping (2) · aerial propellers (2) · landing (2) · airplane (2)
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CPC B64C27/82 (2) · CPC B64B1/00 (2) · CPC B64C2001/0081 (2)
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Showing below up to 36 results in range #1 to #36.

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