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Patents > Tech fields : design or propellers & National tech categories: FR 6.4 & First filing: No

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Patent agent:
Armengaud jeune (68) · None (65) · E. Blétry (16) · None (14) · J. Bonnet-Thirion (12) · Brandon frères (11) · Dupont et Elluin (10) · J. Germain (10) · Weismann et Marx (9) · Charles Dony (9) · G. de Mestral et F. Harlé (9) · Schwab (9) · L. Chassevent (9) · Hippolyte Josse (8) · Boramé et Julien (7) · Gaston Rose (7) · Ch. Mardelet (6) · Lavoix et Mosès (6)
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IPCs:
IPC B64C39/00 (69) · IPC B64C1/00 (39) · IPC B64C17/00 (38) · IPC B64C11/00 (24) · IPC B64C35/00 (19) · IPC B64C23/00 (18) · IPC B64C27/04 (15) · IPC B64C3/38 (15) · IPC B64C25/00 (14) · IPC B64C33/02 (11) · IPC B64B1/00 (11) · IPC B64C3/00 (9) · None (9) · IPC B64C11/20 (8) · IPC B64C3/52 (8) · IPC B64B1/58 (7) · IPC B64C11/04 (7) · IPC B64C3/18 (7) · IPC B64C13/00 (7) · IPC B64C3/54 (7)
CPCs:
CPC B64C39/00 (57) · CPC B64C2700/6295 (45) · CPC B64C17/00 (38) · CPC B64C2700/6218 (19) · CPC B64C23/005 (18) · CPC B64C11/006 (15) · CPC B64C2700/6274 (15) · CPC B64C3/385 (13) · CPC B64C33/02 (12) · CPC B64C35/00 (11) · CPC B64B1/00 (11) · CPC B64C2700/6281 (10) · CPC B64C27/04 (10) · CPC B64F2700/6226 (10) · CPC B64C3/00 (9) · CPC B64C13/00 (9) · CPC B64C1/00 (9) · CPC B64C25/06 (8)
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