Drilldown: Patents

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Patents > Tech fields : LTA or helicopter & Family year: 1900 - 1909

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Supplementary to patent:
None (540) · Patent BE-1909-214032 (32) · Patent DE-1908-221549 (7) · Patent ES-1906-38692 (6) · Patent US-1906-850616 (6) · Patent FR-1906-366080 (5) · Patent FR-1902-328044 (5) · Patent FR-1908-407090 (4) · Patent FR-1907-382794 (4) · Patent DE-1909-226609 (4) · Patent DE-1908-220975 (4) · Patent DE-1907-215602 (4) · Patent HU-1901-22471 (4) · Patent DE-1908-227979 (4) · Patent AT-1907-36106 (4)
Related to aircraft:
Patent agent:
None (367) · A. Wunderlich & Cie, Ingénieurs-Conseils (29) · None (25) · Armengaud jeune (16) · Munn & Co. (15) · Chassevent (13) · Boramé et Julien (13) · Marks & Clerk (12) · Lavoix et Mosès (11) · Brandon frères (9) · J. Bonnet-Thirion (9) · Boult, Wade & Tennant (8) · J. Germain (7) · Hippolyte Josse (7) · G. de Mestral et F. Harlé (7) · Haseltine, Lake & Co. (6) · Herbert Haddan & Co. (6) · Ed. Wolf (6) · Schwab (6)
National tech categories:
FR 6.4 (226) · None (132) · FR 6.3 (58) · BE K (50) · HU V/h (30) · RU Group V (20) · USPC 244/30 (18) · AT 77d (15) · DE 77h (14) · USPC 244/6 (11) · DE 77h.4 (11) · USPC 244/26 (11) · USPC 244/25 (10) · USPC 244/127 (10) · USPC 244/97 (10) · DE 77h.15 (9) · USPC 244/28 (9) · USPC 244/73R (9) · USPC 244/70 (8)
IPCs:
None (356) · IPC B64B1/00 (198) · IPC B64B1/58 (71) · IPC B64B1/62 (26) · IPC B64B1/40 (25) · IPC B64C27/04 (20) · IPC B64C23/00 (17) · IPC B64C39/00 (11) · IPC B64C33/02 (10) · IPC B64C11/00 (8) · IPC B64C17/00 (7) · IPC B64C11/04 (5) · IPC B64C9/00 (5) · IPC F01L1/04 (5) · IPC B64B1/12 (5) · IPC B64C27/00 (4) · IPC B64C11/001 (4) · IPC H02K21/42 (4)
CPCs:
None (243) · CPC B64B1/00 (219) · CPC B64B1/58 (74) · CPC B64B1/40 (35) · CPC B64C23/005 (33) · CPC B64B1/62 (30) · CPC B64C2700/6281 (16) · CPC B64C33/02 (14) · CPC B64C2700/6274 (13) · CPC B64C39/005 (13) · CPC B64C27/04 (12) · CPC B64C27/82 (11) · CPC B64C11/001 (10) · CPC B64C17/00 (8) · CPC B64C11/006 (8) · CPC B64C27/12 (8) · CPC B64C9/00 (7)
First filing:
Citations from after 1930:

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