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Patents > CPCs : CPC B64C2700/6274 or CPC B64C2700/6281 & Number of diagram pages: 2-7

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Office:
Inventors:
None (3) · Peter Pitcairn Carmichael (2) · George Matthews Lindsay Moore-Irvine (2) · Emil Neyen (2) · Edward Arthur Geoghegan (2) · Paul Lyssow (2) · Édouard-Jean Bigourdan (2) · Alfred E. Wunderlich (2) · Wasily Lewitsky (2) · Alexis Beurrier (2) · William Everett Sylvester Coyne (2)
Inventor country:
Applicant person:
None (3) · Paul Lyssow (2) · Emil Neyen (2) · Alexis Beurrier (2) · Wasily Lewitsky (2) · Alfred E. Wunderlich (2) · Édouard-Jean Bigourdan (2) · Peter Pitcairn Carmichael (2)
Applicant type:
Applicant is inventor:
Tech fields:
helicopter (25) · Airplane (15) · None (13) · propellers (12) · propulsion (11) · hybrid (10) · ascension (8) · Design (7) · control (6) · heavier-than-air (5) · propeller (4) · Construction (4) · frame (4) · lift (4) · Steering (3) · motors (3) · HTA (3)
Full specification filed date:
Application number:
None (2)
Granted:
Related to aircraft:
Patent agent:
None (12) · None (4) · Boult, Wade & Tennant (2) · J. Owden O'Brien (2) · Paul Caquet (2) · Brandon freres (2) · J. Bonnet-Thirion (2) · Boramé et Julien (2) · Armengaud jeune (2)
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First filing:
Citations from after 1930:
Number of diagram pages:

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