Drilldown: Patents

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Patents > Tech fields: helicopter & Number of claims: 3-40 & Number of diagram pages: 2-10

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Office:
Inventors:
None (3) · Thomas Augustus Dring (3) · Samuel Dimmick Mott (3) · Maurice Léger (3) · Didier Rouilly (2) · William Everett Sylvester Coyne (2) · William David Le Fevre (2) · Pieter Barteld Van Leggelo (2) · Peter Pitcairn Carmichael (2) · John J. Donnelly (2) · Jean-Jacques-Élie Farcot (2) · James Jesse Jackson (2) · Émile Dupont (2) · Edwin Richard Mumford (2) · Isaac Bell (2) · Alphonse Papin (2)
Inventor country:
Applicant person:
None (13) · Samuel Dimmick Mott (3) · Maurice Léger (3) · Isaac Bell (2) · John J. Donnelly (2) · Émile Dupont (2) · Edwin Richard Mumford (2) · Didier Rouilly (2) · Pieter Barteld Van Leggelo (2) · Peter Pitcairn Carmichael (2) · Thomas Augustus Dring (2) · Alphonse Papin (2) · William David Le Fevre (2) · James Jesse Jackson (2)
Applicant type:
Applicant is inventor:
Tech fields: (Click arrow to add another value)
Full specification filed date:
Application number:
None (25)
Granted:
Related to aircraft:
Patent agent:
None (22) · Victor J. Evans (5) · None (4) · Munn & Co. (4) · C. A. Snow & Co. (2) · J. S. Withers & Spooner (2) · Edmund Hunt & Co. (2) · H. D. Fitzpatrick & Co. (2) · Arthur Otto Sachse (2) · A. J. O'Brien (2) · Allison Bros. (2)
National tech categories:
None (30) · FR 6.4 (11) · USPC 244/6 (10) · USPC 244/17.15 (5) · USPC 244/20 (4) · USPC 244/122R (3) · USPC 244/65 (3) · USPC 244/66 (3) · USPC 244/17.21 (3) · USPC 244/17.11 (3)
First filing:
Cites these patents:
Citations from after 1930:
Number of diagram pages:

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