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Patents > National tech categories : CA 244/53 or DE 77h or FR 6.3

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Tech fields:
LTA (183) · navigation (143) · propulsion (136) · balloon (70) · dirigible (56) · aerostat (52) · Airplane (42) · None (36) · construction (36) · airship (36) · stability (34) · safety (30) · frame (30) · balloons (28) · propellers (26) · ascension (23) · parachute (22) · subsystem (22) · whole (22)
Full specification filed date:
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None (516)
Granted:
Supplementary to patent:
None (505) · Patent FR-1907-377174 (3) · Patent FR-1878-124576 (3) · Patent FR-1881-142748 (3) · Patent FR-1909-420004 (2) · Patent FR-1902-326476 (2) · Patent FR-1902-317598 (2) · Patent FR-1901-317232 (2) · Patent FR-1900-304673 (2) · Patent GB-1902-24336 (2) · Patent FR-1897-271948 (2) · Patent FR-1893-233439 (2) · Patent FR-1892-225358 (2) · Patent FR-1891-217128 (2) · Patent FR-1890-205155 (2) · Patent FR-1883- (2) · Patent FR-1881-143296 (2) · Patent FR-1898-275602 (2) · Patent FR-1893-228892 (2) · Patent DE-1892-73603 (2)
Related to aircraft:
Patent agent:
None (299) · Armengaud jeune (26) · Chassevent (25) · Blétry aîné (17) · Desnos (15) · Société Marillier et Robelet (14) · Armengaud aîné (12) · Dieuaide (9) · None (9) · Hippolyte Josse (8) · Dumas (8) · Casalonga (7) · Société Louis Gudman et Cie (7) · Société Matray frères (6) · Émile Barrault (6) · C. Blétry (6) · Josse (5) · Société Thirion et Bonnet (5) · Thirion (5) · Weismann et Marx (5)
National tech categories: (Click arrow to add another value)
IPCs:
None (469) · IPC B64B1/00 (61) · IPC B64B1/40 (12) · IPC B64C39/00 (12) · IPC B64B1/58 (11) · IPC B64C33/02 (10) · IPC B64C11/00 (9) · IPC B64C27/04 (8) · IPC B64C23/00 (5) · IPC B64C17/00 (3)
CPCs:
None (455) · CPC B64B1/00 (60) · CPC B64C33/02 (12) · CPC B64B1/40 (12) · CPC B64B1/58 (11) · CPC B64C2700/6281 (7) · CPC B64C23/005 (6) · CPC B64C39/005 (6) · CPC B64C39/00 (5) · CPC B64C11/006 (4) · CPC B64C17/00 (4) · CPC B64C11/001 (4) · CPC B64C27/12 (4) · CPC B64C31/04 (3) · CPC A63H27/08 (3) · CPC B64C2700/6295 (3) · CPC B64C27/04 (3)
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Cites these patents:
Citations from after 1930:
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