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Patents > Tech fields: propulsion & National tech categories : FR 6.4 or USPC 244/81

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Applicant person:
None (24) · Charles Wolf (5) · Pierre Le Goaziou (4) · Mathieu Castay (3) · Edmond Bénel (3) · Henry Picq (3) · Émile-Louis Letord (3) · Louis-Isidore Henry (3) · Désiré Crayssac (3) · Adolphe Clément-Bayard (3) · Jean Desbois (3) · Lucien Chauvière‎‎ (3) · Marius Chantron (3)
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Supplementary to patent:
None (186) · Patent FR-1908-407090 (4) · Patent FR-1909-398825 (2) · Patent FR-1913-456298 (2) · Patent FR-1908-394418 (2) · Patent FR-1908-394254‎ (2) · Patent FR-1907-392394 (2) · Patent FR-1911-432053 (2) · Patent FR-1909-408644 (2) · Patent AT-1909-48421 (2)
Related to aircraft:
Patent agent:
None (53) · Armengaud jeune (21) · None (18) · J. Germain (11) · J. Bonnet-Thirion (10) · Schwab (9) · L. Chassevent (9) · E. Blétry (9) · G. de Mestral et F. Harlé (9) · Lavoix et Mosès (6) · Brandon frères (6) · de Bongé (6) · Charles Dony (6) · Dom. Casalonga (4) · Y. Rabilloud et fils (4) · Weismann et Marx (4)
National tech categories: (Click arrow to add another value)
IPCs:
IPC B64C11/00 (45) · IPC B64C39/00 (38) · IPC B64C23/00 (25) · IPC B64B1/00 (23) · None (14) · IPC B64C27/04 (14) · IPC B64C33/02 (12) · IPC B64D27/00 (11) · IPC B64B1/58 (7) · IPC B64D35/04 (7) · IPC B64C33/00 (6) · IPC B64C11/20 (6) · IPC B64C11/30 (5) · IPC B64C27/00 (5) · IPC B64D35/08 (5) · IPC B64B1/62 (4) · IPC B64C3/52 (4) · IPC B64C11/04 (4)
CPCs:
CPC B64C11/006 (32) · CPC B64C23/005 (26) · CPC B64C39/00 (26) · CPC B64B1/00 (23) · CPC B64C2700/6274 (19) · CPC B64C33/02 (13) · CPC B64C2700/6295 (12) · CPC B64C11/00 (11) · CPC B64C2700/6281 (10) · CPC B64D27/00 (10) · CPC B64C27/04 (10) · CPC B64B1/58 (7) · CPC B64D35/04 (7) · CPC B64C33/00 (6) · CPC B64D2700/62763 (6) · CPC B64C11/20 (5) · CPC B64C27/00 (5) · CPC B64D35/08 (5) · CPC B64C11/30 (5)
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Citations from after 1930:
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