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Patents > Year granted: 1920 & Inventor country: US

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Year granted:
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Inventors:
None (4) · John William Rapp (4) · Henry Kleckler (4) · Alfred John Macy (3) · Joseph Vanorio (3) · Hermann Faehrmann (3) · Ralph Hazlett UPSON (3) · Douglas Dobbins (2) · Henry O. Watts (2) · Henry L. Haskell (2) · Harold D. Peoples (2) · George W. Bidykoffer (2) · Melville W. Mix (2) · Nelson W. Dalton (2) · Robert Ingersoll Eustis (2) · Frank Frederick Simons (2) · Bertrand F. Kenyon (2) · Seth Hart (2)
Inventor country: (Click arrow to add another value)
Applicant person:
None (10) · John William Rapp (5) · Alfred John Macy (3) · Hermann Faehrmann (3) · Henry Kleckler (3) · Joseph Vanorio (3) · James Vernon Martin (3) · Douglas Dobbins (2) · John Day De Prez (2) · Henry O. Watts (2) · Harold D. Peoples (2) · GOODYEAR TIRE RUBBER (2) · George W. Bidykoffer (2) · Frank Frederick Simons (2) · Melville W. Mix (2) · Nelson W. Dalton (2) · Seth Hart (2) · Robert Ingersoll Eustis (2) · Bertrand F. Kenyon (2)
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Full specification filed date:
Application number:
None (12)
Granted:
Related to aircraft:
Patent agent:
None (30) · John P. Tarbox (8) · Lockwood & Lockwood (2) · Marks & Clerk (2) · Chappell & Earl (2) · Moulton & Laurance (2) · Victor J. Evans (2) · Munn & Co. (2) · J. Germain (2) · N. S. Amstutz (2) · None (2) · Herbert H. Thompson (2)
IPCs:
None (21) · IPC B64C23/00 (7) · IPC B64C3/00 (6) · IPC B64C39/00 (5) · IPC B64C25/00 (4) · IPC B64C17/00 (4) · IPC B64C13/12 (4) · IPC B64C11/04 (3) · IPC B64C33/00 (3) · IPC B64C13/00 (3) · IPC B64C11/36 (3) · IPC B64C11/20 (2) · IPC B64C11/32 (2) · IPC B64C1/00 (2) · IPC B64C1/08 (2) · IPC B64C29/00 (2) · IPC B64C3/18 (2) · IPC B64C35/00 (2) · IPC B64C11/48 (2)
CPCs:
CPC B64C23/005 (8) · CPC B64C2700/6274 (6) · CPC B64C3/00 (6) · CPC B64C17/00 (6) · CPC B64C2700/6295 (5) · CPC B64C33/00 (4) · CPC B64C13/12 (4) · CPC B64C13/00 (4) · CPC B64C2700/6256 (4) · CPC B64C2700/6235 (4) · CPC B64C11/04 (4) · CPC B64C39/00 (4) · CPC B64C11/36 (3) · CPC B64F2700/6226 (3) · CPC B64C2001/0081 (3) · CPC B64B1/40 (3)
First filing:
Citations from after 1930:
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