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Patents > National tech categories: None & CPCs : CPC B64C23/005 or CPC B64C25/32

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Office:
Inventors:
None (4) · Walter Fisher LUFF (3) · Nelson Leslie Hyatt (3) · Albert Ernest Downing (2) · Franklin William Lake (2) · Douglas DOBBINS (2) · Thomas Augustus Dring (2) · August Wendtland (2) · Otto SACK (2) · Alwin HITZEROTH (2) · Alfred E. Wunderlich (2)
Inventor country:
Applicant person:
None (11) · Walter Fisher Luff (3) · Nelson Leslie Hyatt (3) · Franklin William Lake (2) · Vincent Joseph Conces (2) · SACK Otto (2) · HITZEROTH ALWIN (2) · Thomas Augustus Dring (2) · Alfred E. Wunderlich (2) · John DAY PREZ (2) · Albert Ernest Downing (2)
Applicant is inventor:
Tech fields:
None (124) · airplane (18) · propulsion (10) · Frame (8) · propeller (7) · whole (6) · design (6) · helicopter (5) · wings (5) · navigation (5) · hybrid (5) · propellers (4) · landing (4) · construction (4) · lift (3) · heavier-than-air (3) · stability (3) · aerodynamics (3) · control (3)
Full specification filed date:
Application number:
None (5)
Granted:
Publication date:
Related to aircraft:
National tech categories: (Click arrow to add another value)
CPCs: (Click arrow to add another value)
First filing:
Cites these patents:
None (163)
Citations from after 1930:
Number of diagram pages:

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