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Patents > National tech categories : FR 5 or FR 6.3 or USPC 244/221

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Tech fields:
LTA (185) · Navigation (156) · Propulsion (129) · None (101) · balloon (95) · aerostat (60) · dirigible (54) · airplane (38) · airship (37) · construction (30) · balloons (28) · stability (28) · propellers (23) · ascension (23) · safety (21) · Hybrid (18) · dirigibles (18) · parachute (17) · propeller (14) · frame (14)
Full specification filed date:
Application number:
None (553)
Granted:
Supplementary to patent:
None (565) · Patent FR-1881-142748 (3) · Patent FR-1878-124576 (3) · Patent FR-1907-377174 (3) · Patent FR-1890-205155 (2) · Patent FR-1897-271948 (2) · Patent FR-1898-275602 (2) · Patent FR-1883- (2) · Patent FR-1909-420004 (2) · Patent FR-1891-217128 (2) · Patent FR-1893-233439 (2) · Patent FR-1901-317232 (2) · Patent FR-1902-317598 (2) · Patent FR-1893-228892 (2) · Patent FR-1850-10514 (2) · Patent FR-1902-326476 (2) · Patent FR-1881-143296 (2) · Patent FR-1892-225358 (2) · Patent DE-1892-73603 (2)
Related to aircraft:
Patent agent:
None (309) · Armengaud jeune (27) · 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) · Émile Barrault (6) · C. Blétry (6) · Société Matray frères (6) · Jules Mathieu (6)
National tech categories: (Click arrow to add another value)
IPCs:
None (545) · IPC B64B1/00 (56) · IPC B64C39/00 (11) · IPC B64C27/04 (9) · IPC B64C33/02 (9) · IPC B64C11/00 (8) · IPC B64B1/40 (7) · IPC B64B1/58 (6) · IPC B64C23/00 (4) · IPC B64C17/00 (3) · IPC B64C13/04 (3) · IPC B64C13/00 (3) · IPC B64C1/00 (3) · IPC B64C13/02 (2) · IPC B64C31/04 (2) · IPC B64C33/00 (2)
CPCs:
None (536) · CPC B64B1/00 (56) · CPC B64C33/02 (9) · CPC B64B1/40 (7) · CPC B64C2700/6281 (7) · CPC B64C39/005 (6) · CPC B64B1/58 (6) · CPC B64C13/04 (6) · CPC B64C23/005 (5) · CPC B64C39/00 (5) · CPC B64C11/001 (4) · CPC B64C27/12 (4) · CPC B64C27/04 (4) · CPC B64C17/00 (3) · CPC B64C2700/6295 (3) · CPC B64C11/006 (3)
First filing:
Cites these patents:
Citations from after 1930:
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