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Patents > Tech fields : Propellers or gyroscope & Related to aircraft: 1

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None (171)
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Supplementary to patent:
None (250) · Patent US-1909-970771 (8) · Patent DE-1911-251309 (4) · Patent DE-1909-220044 (4) · Patent DE-1910-06-18 Carl Hanschke (4) · Patent FR-1909-404954 (3) · Patent FR-1916-502839 (3)
Related to aircraft: (Click arrow to add another value)
Patent agent:
None (141) · Armengaud jeune (12) · Boult, Wade & Tennant (10) · Marks & Clerk (8) · Munn & Co. (8) · None (7) · Haseltine, Lake & Co. (6) · J. Bonnet-Thirion (6) · E. Blétry (5) · Schwab (5) · Lavoix et Mosès (5) · de Bongé (5) · A. Wunderlich & Cie, Ingénieurs-Conseils (4) · Brandon frères (4) · Weismann et Marx (4) · Arthur C. Downing (4) · Dupont et Elluin (4)
National tech categories:
None (126) · FR 6.4 (81) · HU V/h (46) · BE K (21) · AT 77d (19) · FR 6.2 (10) · FR 6.3 (6) · USPC 244/79 (5) · IT 8 (5) · CH 129b (5) · USPC 244/50 (4) · DE 42c.35 (4) · DK 77 (4) · NL 62 (3) · CH 128c (3) · USPC 244/233 (3) · USPC 244/23R (3) · USPC 244/35R (3)
IPCs:
None (209) · IPC B64C39/00 (20) · IPC B64C11/00 (18) · IPC B64C1/00 (16) · IPC B64C17/06 (13) · IPC B64C23/00 (12) · IPC B64C11/20 (8) · IPC B64D35/04 (7) · IPC B64C11/16 (6) · IPC B64C11/36 (5) · IPC B64C27/04 (5) · IPC B63H1/12 (4) · IPC B64C17/00 (4) · IPC B64C11/04 (4)
CPCs:
None (163) · CPC B64C17/06 (17) · CPC B64C39/00 (12) · CPC B64C23/005 (11) · CPC B64C11/006 (11) · CPC B64C2700/6216 (9) · CPC B64D35/04 (8) · CPC B64C2700/6295 (8) · CPC B64C13/00 (7) · CPC B64C11/00 (7) · CPC B64C11/16 (7) · CPC B64C39/08 (5) · CPC B64C2700/6274 (5) · CPC B64C11/36 (5) · CPC B64C17/00 (5)
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