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Patents > IPCs: IPC B64C23/00 & Number of claims: 4-40

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Office:
Inventors:
None (2) · Ernest William Welsh (2) · Alfred William Turner (2) · Gustav Mees (2) · Otto Sack (2) · Walter Fisher Luff (2)
Inventor country:
Applicant person:
None (4) · Walter Fisher Luff (2) · Gustav Mees (2) · Ernest William Welsh (2) · Otto Sack (2) · Alfred William Turner (2)
Applicant type:
Applicant is inventor:
Tech fields:
None (25) · Airplane (22) · hybrid (15) · Propulsion (14) · Frame (12) · Design (10) · Propellers (8) · whole (8) · Helicopter (8) · Ascension (6) · Lift (6) · heavier-than-air (6) · stability (5) · Construction (5) · propeller (5) · sustentation (4) · control (4)
Full specification filed date:
Application number:
None (4)
Granted:
Related to aircraft:
Patent agent:
None (5) · None (5) · E. Blétry (4) · Armengaud jeune (3) · Coquillat (2) · Hy. Fairbrother (2) · M. Zerolo (2) · G. de Mestral et F. Harlé (2) · Marks & Clerk (2) · Edward Evans & Co. (2) · E. Wattier (2) · Cruikshank & Fairweather, Limited (2)
IPCs: (Click arrow to add another value)
First filing:
Citations from after 1930:
Number of text pages:
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