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Patents > Office : BE or CA or SU or Other or None & Inventor country : CA or US & Tech fields : Airplane or propeller & Number of text pages: 2-6 & Number of diagram pages: 2-3

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Office: (Click arrow to add another value)
Inventors:
Albert Hugo Friedel (6) · John Washington Wilson (5) · Spencer Heath (4) · Louis Coutant Badeau (3) · Anthony O'Brate (3) · Henry Kleckler (3) · George Raymond Lawrence (3) · John Thomas Simpson (3) · Burt Jackson Pressey (3) · William Swart Romme (3)
Inventor country: (Click arrow to add another value)
Applicant person:
None (37) · John Washington Wilson (5) · Albert Hugo Friedel (5) · Spencer Heath (4) · Henry Kleckler (3) · Louis Coutant Badeau (3) · John Thomas Simpson (3) · Burt Jackson Pressey (3) · Anthony O'Brate (3) · George Raymond Lawrence (3) · William Swart Romme (3)
Applicant is inventor:
Tech fields: (Click arrow to add another value)
Full specification filed date:
Application number:
None (58)
Granted:
Related to aircraft:
Patent agent:
None (68) · Victor J. Evans (12) · Munn & Co. (10) · None (6) · R. S. & A. B. Lacey (6) · John P. Tarbox (5) · C. A. Snow & Co. (4) · Joshua R. H. Potts (4) · Dyer, Dyer, and Taylor (4) · Watson E. Coleman (4) · G. L. Cragg (3) · Marks & Clerk (3)
National tech categories:
None (63) · USPC 244/90R (13) · USPC 244/6 (11) · FR 6.4 (9) · USPC 244/80 (8) · USPC 244/35R (8) · USPC 244/48 (8) · USPC 244/66 (8) · USPC 244/87 (7) · HU V/h (7) · USPC 244/13 (7) · USPC 244/45R (6) · USPC 244/22 (6) · USPC 244/93 (5) · USPC 244/60 (5) · USPC 244/139 (5)
IPCs:
None (199) · IPC B64C39/00 (13) · IPC B64C3/00 (8) · IPC B64B1/00 (7) · IPC B64C13/00 (6) · IPC B64C17/00 (5) · IPC B64C3/38 (3) · IPC B64C1/00 (3) · IPC B64C33/00 (3) · IPC B64C23/00 (2) · IPC B64C39/08 (2) · IPC B64C27/00 (2) · IPC B64C3/14 (2)
CPCs:
CPC B64C13/00 (25) · CPC B64C23/005 (21) · CPC B64C2700/6295 (20) · None (19) · CPC B64C17/00 (18) · CPC B64B1/00 (16) · CPC B64C39/005 (15) · CPC B64C3/385 (11) · CPC B64C39/08 (10) · CPC B64C11/006 (10) · CPC B64C3/14 (9) · CPC B64C39/00 (8) · CPC B64C11/48 (7) · CPC B64C33/02 (6) · CPC B64C27/82 (5) · CPC B63H5/10 (5) · CPC B64C3/00 (5)
First filing:
Citations from after 1930:
Number of text pages:
Number of diagram pages:

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