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Patents > CPCs: CPC B64C39/005 & Number of text pages: 2-3 & Number of claims: 4-30

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propulsion (17) · navigation (10) · frame (9) · propeller (8) · airplane (6) · LTA (6) · helicopter (5) · None (4) · stability (4) · landing (4) · hybrid (4) · flapping (3) · parachute (3) · heavier-than-air (3) · car (3) · design (3)
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Showing below up to 37 results in range #1 to #37.

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