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Patents > National tech categories: USPC 244/22 & First filing: Yes

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Office:
Inventors:
Ruter William Springer (2) · Charles I MATSON (2)
Inventor country:
Applicant person:
None (3) · MATSON Charles I (2)
Applicant type:
Applicant is inventor:
Tech fields:
flapping (21) · None (20) · Propulsion (17) · ornithopter (16) · frame (16) · navigation (13) · airplane (9) · propeller (8) · rudder (7) · parachute (6) · wings (6) · hybrid (5) · aerodrome (5) · car (4) · airfoil (4)
Full specification filed date:
Application number:
None (3)
Granted:
Publication date:
Related to aircraft:
National tech categories: (Click arrow to add another value)
First filing: (Click arrow to add another value)
Cites these patents:
Citations from after 1930:

Showing below up to 67 results in range #1 to #67.

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