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Patents > National tech categories : DE 62b.42 or FR 6.3 or USPC 244/30

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Tech fields:
LTA (203) · navigation (146) · propulsion (135) · balloon (74) · None (68) · dirigible (54) · aerostat (52) · airplane (38) · airship (33) · construction (29) · stability (28) · frame (27) · safety (27) · balloons (25) · propeller (24) · ascension (24) · propellers (23) · hybrid (18) · car (18)
Full specification filed date:
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None (441)
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Supplementary to patent:
None (482) · 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 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 (241) · Armengaud jeune (26) · Chassevent (25) · Blétry aîné (17) · Desnos (15) · Société Marillier et Robelet (14) · Armengaud aîné (12) · None (9) · Dieuaide (9) · Dumas (8) · Hippolyte Josse (8) · Casalonga (7) · Société Louis Gudman et Cie (7) · Émile Barrault (6) · Société Matray frères (6) · C. Blétry (6)
National tech categories: (Click arrow to add another value)
IPCs:
None (428) · IPC B64B1/00 (92) · IPC B64C39/00 (11) · IPC B64C33/02 (9) · IPC B64C27/04 (9) · IPC B64C11/00 (8) · IPC B64B1/40 (7) · IPC B64B1/58 (6) · IPC B64C23/00 (4) · IPC B64C17/00 (3) · IPC B64C13/04 (2) · IPC B64C13/02 (2) · IPC B64C31/04 (2) · IPC B64C1/00 (2) · IPC B64B1/02 (2) · IPC B64C33/00 (2)
CPCs:
None (398) · CPC B64B1/00 (117) · CPC B64C33/02 (9) · CPC B64B1/40 (8) · CPC B64C2700/6281 (7) · CPC B64C39/005 (6) · CPC B64B1/58 (6) · CPC B64C39/00 (5) · CPC B64C27/12 (4) · CPC B64C27/04 (4) · CPC B64C23/005 (4) · CPC B64C11/001 (4) · CPC B64C17/00 (3) · CPC B64C11/006 (3) · CPC B64C2700/6295 (3)
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Cites these patents:
Citations from after 1930:
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