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Patents > Tech fields : Airship or propellers & Filing date: 1910 - 1919 & Supplementary to patent : Patent US-1909-970771 or None

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Patent agent:
None (199) · Armengaud jeune (16) · None (9) · E. Blétry (7) · Haseltine, Lake & Co. (6) · Hippolyte Josse (6) · A. Wunderlich & Cie, Ingénieurs-Conseils (6) · H. Bœttcher fils (6) · Charles Dony (5) · Boult, Wade & Tennant (5) · Lavoix et Mosès (5) · de Bongé (4) · Arthur C. Downing (4) · H. D. Fitzpatrick & Co. (4) · Marks & Clerk (4) · M. Zerolo (4) · L. Chassevent (4) · J. Bonnet-Thirion (4) · Victor J. Evans (4)
National tech categories:
None (126) · FR 6.4 (113) · HU V/h (55) · BE K (25) · AT 77d (19) · FR 6.2 (12) · DE 77h.6 (7) · NL 62 (4) · USPC 244/50 (4) · USPC 244/65 (4) · USPC 244/73R (3) · DE 77h.2 (3) · USPC 244/125 (3) · USPC 244/233 (3)
IPCs:
None (197) · IPC B64C11/00 (38) · IPC B64B1/00 (22) · IPC B64C39/00 (18) · IPC B64C11/04 (15) · IPC B64C11/16 (11) · IPC B64C11/20 (11) · IPC B64B1/58 (9) · IPC B63H1/12 (7) · IPC B64C23/00 (7) · IPC B64C11/30 (6) · IPC B64C27/04 (5) · IPC B64C1/00 (5) · IPC B64D27/00 (4) · IPC B64C27/00 (4) · IPC B64C17/00 (4) · IPC B64C11/24 (4) · IPC B64B1/22 (4)
CPCs:
None (126) · CPC B64B1/00 (30) · CPC B64C11/006 (23) · CPC B64C11/04 (15) · CPC B64C11/16 (14) · CPC B64C11/00 (14) · CPC B64C23/005 (12) · CPC B64C13/00 (11) · CPC B64C39/00 (9) · CPC B64B1/58 (9) · CPC B64C2700/6274 (7) · CPC B64C11/20 (7) · CPC B64C17/00 (6) · CPC B64B1/62 (6) · CPC B64C39/005 (6) · CPC B64C11/48 (5) · CPC B64C39/008 (5) · CPC B64C11/001 (5) · CPC B64D27/00 (5)
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