Drilldown: Patents

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Patents > Office : FR or RU & Application number : 423792D or 449503D or None & Supplementary to patent : Patent FR-1907-373818 or Patent FR-1909-420322 or None & Related to aircraft : 0? or 1911-07-04 or 1912-01-30 or Yes

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Tech fields:
LTA (213) · navigation (188) · balloon (110) · propulsion (95) · aerostat (48) · airplane (42) · None (33) · dirigible (28) · airship (24) · construction (24) · balloons (23) · propellers (22) · safety (19) · frame (16) · stability (15) · Aerial Navigation* (15) · design (15) · parachute (14) · hybrid (14)
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Patent agent:
None (429) · Armengaud jeune (22) · Desnos (13) · Blétry aîné (10) · Armengaud aîné (8) · Chassevent (6) · Thirion (6) · Jules Mathieu (5) · L. Chassevent (5) · Dumas (5) · Société Louis Gudman et Cie (5) · Dieuaide (4) · Casalonga (4) · None (4) · Schwab (4) · Société Marillier et Robelet (4) · Société Matray frères (4) · Dupont et Elluin (4) · Albert Cahen (4) · Josse (4)
IPCs:
None (602) · IPC B64B1/00 (7) · IPC B64D17/00 (6) · IPC B64D1/04 (5) · IPC B64B1/40 (4) · IPC B64C1/00 (3) · IPC E04H6/44 (2) · IPC B64C21/02 (2) · IPC B64F1/14 (2) · IPC B64B1/58 (2) · IPC B64C25/00 (2) · IPC B64D17/54 (2) · IPC B64D7/02 (2) · IPC B63H1/12 (2) · IPC B64C27/04 (2)
CPCs:
None (600) · CPC B64D17/00 (6) · CPC B64B1/00 (6) · CPC B64D1/04 (5) · CPC B64B1/40 (4) · CPC B64C25/62 (2) · CPC B64D7/02 (2) · CPC B64C21/02 (2) · CPC Y02T50/10 (2) · CPC B64B1/005 (2) · CPC B64B1/58 (2) · CPC B64F1/14 (2) · CPC B64D17/54 (2)
First filing:
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Citations from after 1930:
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