Drilldown: Patents

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Patents > Year filed: 1900 - 1909 & National tech categories: FR 6.4 & First filing: Yes

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None (61) · Armengaud jeune (38) · None (36) · Chassevent (18) · Boramé et Julien (17) · J. Bonnet-Thirion (16) · Weismann et Marx (14) · J. Germain (14) · E. Blétry (12) · Brandon frères (11) · Y. Rabilloud et fils (7) · Lavoix et Mosès (7) · G. de Mestral et F. Harle (7) · H. Elluin (7) · C. Blétry (7) · Dom. Casalonga (6) · Hippolyte Josse (6) · Charles Dony (5) · C. Bauman (4) · L. Chassevent (4)
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IPCs:
IPC B64C39/00 (55) · IPC B64B1/00 (43) · IPC B64C23/00 (29) · IPC B64C33/02 (28) · IPC B64C17/00 (26) · IPC B64C27/04 (25) · IPC B64B1/58 (24) · IPC B64C1/00 (20) · None (18) · IPC B64C3/38 (17) · IPC B64C3/00 (12) · IPC B64C11/00 (11) · IPC B64C33/00 (9) · IPC B64C13/00 (7) · IPC B64C3/52 (7) · IPC B64C35/00 (5) · IPC B64C17/06 (5) · IPC B64D35/04 (4) · IPC B64B1/62 (4) · IPC B64C25/00 (4)
CPCs:
CPC B64C39/00 (48) · CPC B64B1/00 (42) · CPC B64C33/02 (31) · CPC B64C2700/6295 (31) · CPC B64C23/005 (29) · CPC B64C17/00 (28) · CPC B64C2700/6274 (23) · CPC B64B1/58 (23) · CPC B64C2700/6281 (20) · CPC B64C27/04 (16) · CPC B64C3/385 (15) · CPC B64C3/00 (12) · CPC B64C2700/6212 (11) · CPC B64C33/00 (11) · CPC B64C11/006 (10) · CPC B64C2700/6233 (8) · CPC B64C2700/6218 (8) · CPC B64C13/00 (8) · CPC B64C1/00 (8) · CPC B64C3/52 (7)
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