Drilldown: Patents

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Patents > Granted : Yes or None & Publication date: 1900 - 1999 & Patent agent : None or Schwab & IPCs : IPC B64C33/02 or IPC B64C39/00 & Citations from after 1930: None

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airplane (14) · Propulsion (9) · propellers (6) · ornithopter (5) · sustentation (5) · design (5) · toy (4) · Frame (4) · flapping (4) · None (3) · Fuselage (3) · LTA (3) · Coleopter (3) · Rudder (3) · stability (3)
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Showing below up to 33 results in range #1 to #33.

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