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Patents > Inventors : Alfred E. Wunderlich or Willian John Hastings Beach

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propellers (49) · Airplane (45) · hybrid (38) · LTA (34) · Rarefaction (10) · propulsion (9) · sustentation (8) · ascension (7) · helicopter (4) · design (4)
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Showing below up to 66 results in range #1 to #66.

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