Drilldown: Patents

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Patents > Tech fields : hybrid or stability & Family year: 1900 - 1999 & First filing: No

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Patent agent:
None (207) · Armengaud jeune (38) · A. Wunderlich & Cie, Ingénieurs-Conseils (31) · Marks & Clerk (15) · Haseltine, Lake & Co. (14) · J. Germain (12) · None (12) · Abel & Imray (11) · E. Blétry (11) · J. Bonnet-Thirion (10) · Schwab (10) · Lavoix et Mosès (8) · Charles Dony (7) · Dom. Casalonga (6) · Chassevent (6) · H. Bœttcher fils (6)
National tech categories:
FR 6.4 (298) · None (135) · BE K (60) · HU V/h (35) · AT 77d (14) · FR 6.3 (14) · DK 77 (7) · CH 129b (7) · RU Group V (6) · IT 8 (6) · DE 77h.5 (5) · USPC 244/78.1 (3) · USPC 244/79 (3) · FR 6.2 (3) · AU 90.3 (3)
IPCs:
None (249) · IPC B64C17/00 (138) · IPC B64C1/00 (108) · IPC B64B1/00 (33) · IPC B64C39/00 (26) · IPC B64C17/06 (24) · IPC B64C23/00 (16) · IPC B64C3/38 (12) · IPC B64C27/04 (11) · IPC B64C35/00 (11) · IPC B64C33/02 (9) · IPC B64B1/40 (8) · IPC B64B1/58 (7) · IPC B64C33/00 (7) · IPC B64C31/06 (6) · IPC B64C13/00 (6) · IPC B64C3/54 (5) · IPC B64C11/00 (4) · IPC B64C25/00 (4) · IPC B64C29/00 (4)
CPCs:
None (186) · CPC B64C17/00 (152) · CPC B64C2700/6218 (58) · CPC B64B1/00 (33) · CPC B64C2700/6214 (28) · CPC B64C17/06 (27) · CPC B64C2700/6212 (27) · CPC B64C39/00 (26) · CPC B64C2700/6216 (24) · CPC B64C2700/6295 (23) · CPC B64C23/005 (20) · CPC B64C13/00 (15) · CPC B64C2700/6274 (13) · CPC B64C3/385 (12) · CPC B64C35/00 (10) · CPC B64C33/02 (10) · CPC B64C1/00 (9) · CPC B64C2700/6219 (9)
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