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Patents > Tech fields : lift or propeller & Number of diagram pages: 2-3

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Office:
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Applicant person:
None (48) · Albert Hugo Friedel (5) · Spencer Heath (4) · Charles Arthur Wragg (3) · Anthony O'Brate (3) · Louis Coutant Badeau (3) · Antoine-Padoue Filippi (3)
Applicant is inventor:
Tech fields: (Click arrow to add another value)
Full specification filed date:
Application number:
None (94)
Granted:
Supplementary to patent:
None (224) · Patent GB-1911-5162 (3) · Patent HU-1913-Pédery-Varsányi-Zoltán (2) · Patent FR-1902-328044 (2) · Patent CA-1909-126457 (2) · Patent BE-1910-230887 (2) · Patent US-1918-1589780 (2) · Patent GB-1908-4519 (2)
Related to aircraft:
Patent agent:
None (75) · Munn & Co. (11) · Victor J. Evans (7) · None (7) · Marks & Clerk (5) · R. S. & A. B. Lacey (5) · Haseltine, Lake & Co. (4) · Watson E. Coleman (4) · Abel & Imray (3) · Wheatley & Mackenzie (3) · W. D. Rowlingson (3)
National tech categories:
None (90) · FR 6.4 (32) · USPC 244/6 (10) · USPC 244/66 (8) · USPC 244/22 (7) · USPC 244/64 (6) · HU V/h (6) · USPC 244/26 (5) · GB 4 propel & steer (5) · USPC 244/80 (5) · FR 6.2 (4) · FR 6.3 (4) · USPC 244/30 (4) · USPC 244/35R (4)
IPCs:
None (189) · IPC B64B1/00 (15) · IPC B64C39/00 (15) · IPC B64C17/00 (8) · IPC B64C1/00 (8) · IPC B64C11/00 (5) · IPC B64C23/00 (5) · IPC B64C27/04 (3) · IPC B64C3/54 (3) · IPC B64C33/02 (3) · IPC B64C11/24 (2) · IPC B64C27/32 (2) · IPC B64C27/00 (2) · IPC B64C33/00 (2) · IPC B64C3/38 (2) · IPC B64C13/00 (2) · IPC B64C11/20 (2) · IPC B64B1/58 (2) · IPC B64D27/04 (2)
CPCs:
None (54) · CPC B64B1/00 (27) · CPC B64C23/005 (22) · CPC B64C11/006 (17) · CPC B64C39/005 (14) · CPC B64C17/00 (13) · CPC B64C33/02 (12) · CPC B64C2700/6295 (9) · CPC B64C11/48 (8) · CPC B64C39/00 (7) · CPC B64C39/08 (7) · CPC B64C3/385 (6) · CPC B64C27/82 (6) · CPC B64C13/00 (5) · CPC B63H5/10 (5) · CPC B63H1/04 (4) · CPC B64C3/14 (4) · CPC B64C2700/6218 (4)
First filing:
Citations from after 1930:
Number of diagram pages:

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