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Patents > IPCs : IPC A63H27/00 or IPC B64C1/00 & First filing: Yes

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None (248) · Seine (6) · Paris (5) · Nord (3) · Indiana (2) · Morbihan (2) · Vaucluse (2) · New Jersey (2) · Seine-et-Oise (2)
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None (47) · None (27) · Armengaud jeune (12) · J. Bonnet-Thirion (7) · E. Blétry (6) · de Bongé (6) · Schwab (6) · Boult, Wade & Tennant (6) · Charles Dony (5) · P. Follin (5) · Herbert Haddan & Co. (4) · L. Chassevent (4) · Lavoix et Mosès (4)
IPCs: (Click arrow to add another value)
CPCs:
CPC B64C17/00 (170) · CPC B64C2700/6218 (123) · CPC B64C1/00 (59) · CPC B64C17/06 (35) · CPC B64C2700/6219 (25) · CPC B64C2700/6216 (23) · CPC B64C2700/6228 (21) · CPC B64C2001/0063 (18) · CPC B64C2001/0081 (14) · CPC B64C2700/6225 (8) · CPC B64C17/04 (5) · CPC A63H27/00 (5) · CPC B64C1/061 (4) · CPC B64C1/068 (4) · CPC B64C2700/6223 (4) · CPC B64C2700/6204 (3) · CPC Y02T50/40 (3) · CPC B64C1/08 (3) · CPC B64C1/06 (3)
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