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Patents > Office : FR or RU & CPCs: None & First filing: No

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Tech fields:
LTA (131) · navigation (127) · propulsion (94) · None (55) · aerostat (54) · balloon (52) · propellers (32) · dirigible (31) · airship (29) · Airplane (28) · balloons (26) · stability (23) · construction (18) · frame (17) · safety (16) · propeller (15) · wings (15)
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Supplementary to patent:
None (344) · Patent FR-1841-9265 (6) · Patent FR-1890-205155 (3) · Patent FR-1836-5429 (3) · Patent FR-1878-124576 (3) · Patent FR-1880-139386 (3) · Patent FR-1881-142748 (3) · Patent FR-1861-51979 (3) · Patent FR-1898-275602 (3) · Patent FR-1881-143296 (2) · Patent FR-1913-466329 (2) · Patent FR-1850-10514 (2) · Patent FR-1914-466329.18996 (2) · Patent FR-1893-233439 (2) · Patent FR-1873-97664 (2) · Patent FR-1897-271948 (2) · Patent FR-1892-225358 (2) · Patent DE-1892-73603 (2) · Patent DE-1895-98580 (2)
Related to aircraft:
Patent agent:
None (319) · Armengaud jeune (17) · Desnos (10) · Armengaud aîné (9) · Chassevent (9) · Jules Mathieu (8) · Blétry aîné (7) · Thirion (7) · Société Marillier et Robelet (7) · Société Louis Gudman et Cie (6) · Casalonga (6) · Émile Barrault (5) · Josse (3) · Blétry frères (3) · Albert Cahen (3)
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Citations from after 1930:
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