Drilldown: Patents

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Patents > Applicant firm: None & National tech categories : FR 6.2 or FR 6.4 & Number of text pages: 1-2

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None (180) · Armengaud jeune (153) · None (99) · J. Bonnet-Thirion (47) · Charles Dony (42) · J. Germain (39) · E. Blétry (34) · L. Chassevent (33) · Lavoix et Mosès (29) · G. de Mestral et F. Harle (27) · Hippolyte Josse (25) · Borame et Julien (21) · H. Bœttcher fils (21) · Dom. Casalonga (20) · Schwab (19) · Y. Rabilloud et fils (19) · Dupont et Elluin (16) · Rigot et Prévost (14) · De Bongé (14)
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IPCs:
IPC B64C17/00 (145) · IPC B64C39/00 (126) · IPC B64C1/00 (119) · IPC B64B1/00 (75) · IPC B64C11/00 (73) · IPC B64C3/00 (54) · IPC B64B1/58 (46) · IPC B64C23/00 (45) · None (38) · IPC B64C25/00 (37) · IPC B64C35/00 (37) · IPC B64C33/02 (32) · IPC B64C3/38 (29) · IPC B64C13/00 (27) · IPC B64C27/04 (25) · IPC B64D17/00 (23) · IPC B64C3/54 (19) · IPC B64C11/20 (18) · IPC B64C3/18 (17)
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