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Patents > Tech fields : marine or propeller & Number of text pages: 2-3

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Inventor location:
None (517) · England (7) · New York state (6) · Pennsylvania (5) · New York city (5) · Loire (4) · Budapest (4) · New York (4) · Berlin (4) · New York county (4) · Basse-Pyrénées (3) · NY (3) · Nord (3) · St. Louis (3) · Ohio (3) · FIPSloc=36061 (3) · County of London (3) · Geneva (3)
Applicant firm:
None (572) · Helix Propeller G.m.b.H. (4) · Daimler-Motoren-Gesellschaft (3) · Société E. Charpentier & Cie. (2) · Österreichische Daimler Motoren A. G. (2) · Curtiss Aeroplane (2) · J. Schweitzer et Cie (2)
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Supplementary to patent:
None (492) · Patent FR-1904-340154 (5) · Patent GB-1911-5162 (4) · Patent GB-1909-12556 (4) · Patent US-1913-04-01 Cooper (3) · Patent FR-1902-328044 (3)
Related to aircraft:
Assigned to:
None (593)
National tech categories:
None (184) · FR 6.4 (64) · DE 77h.6 (33) · FR 6.2 (24) · AT 77d (20) · DE 77 (13) · FR 6.3 (10) · USPC 244/66 (10) · USPC 244/64 (8) · USPC 244/6 (8) · USPC 244/70 (8) · USPC 244/22 (7) · USPC 244/30 (7) · USPC 244/51 (7) · DE 77h.5 (7) · DE 77h.9 (6) · USPC 244/26 (6) · USPC 244/13 (6) · RU Group V (6)
IPCs:
None (367) · IPC B64C11/00 (29) · IPC B64B1/00 (22) · IPC B64C39/00 (16) · IPC B64C11/16 (14) · IPC B64C11/04 (13) · IPC B64C35/00 (12) · IPC B64C11/36 (9) · IPC B64C23/00 (8) · IPC B64C17/00 (8) · IPC B63H1/12 (6) · IPC B64C11/34 (6) · IPC B64C11/30 (5) · IPC B64C9/00 (5) · IPC B64C11/20 (5) · IPC B64C27/04 (5) · IPC B64C11/24 (4)
CPCs:
None (127) · CPC B64C11/006 (40) · CPC B64B1/00 (38) · CPC B64C23/005 (29) · CPC B64C11/36 (17) · CPC B64C11/04 (16) · CPC B64C39/005 (16) · CPC B64C2700/6295 (15) · CPC B64C11/48 (15) · CPC B64C35/00 (15) · CPC B64C11/16 (13) · CPC B64C33/02 (13) · CPC B64C17/00 (11) · CPC B64C11/00 (10) · CPC B63H1/04 (8) · CPC B64C27/54 (8) · CPC B64C11/343 (8)
First filing:
Citations from after 1930:
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