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Patents > National tech categories : CH 129b or DE 42c.32 or FR 6.3

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Tech fields:
LTA (157) · Navigation (140) · propulsion (127) · airplane (73) · balloon (60) · aerostat (52) · dirigible (51) · stability (49) · Construction (39) · airship (34) · propellers (32) · None (29) · design (28) · frame (28) · balloons (27) · safety (27) · ascension (24) · wings (20) · propeller (19) · whole (19)
Full specification filed date:
Application number:
None (472)
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Supplementary to patent:
None (461) · Patent FR-1907-377174 (3) · Patent FR-1881-142748 (3) · Patent FR-1878-124576 (3) · Patent FR-1902-317598 (2) · Patent FR-1893-233439 (2) · Patent FR-1893-228892 (2) · Patent FR-1892-225358 (2) · Patent DE-1892-73603 (2) · Patent FR-1902-326476 (2) · Patent FR-1890-205155 (2) · Patent FR-1901-317232 (2) · Patent FR-1909-420004 (2) · Patent FR-1883- (2) · Patent FR-1881-143296 (2) · Patent FR-1897-271948 (2) · Patent FR-1891-217128 (2) · Patent FR-1898-275602 (2)
Related to aircraft:
Patent agent:
None (205) · Armengaud jeune (26) · Chassevent (25) · Blétry aîné (17) · Desnos (15) · Société Marillier et Robelet (14) · E. Blum & Co. (12) · Armengaud aîné (12) · None (10) · E. Imer-Schneider (10) · Dieuaide (9) · Dumas (8) · Hippolyte Josse (8) · Casalonga (7) · Société Louis Gudman et Cie (7) · C. Blétry (6) · Émile Barrault (6) · Société Matray frères (6)
National tech categories: (Click arrow to add another value)
IPCs:
None (445) · IPC B64B1/00 (56) · IPC B64C39/00 (12) · IPC B64C33/02 (8) · IPC B64C27/04 (8) · IPC B64C11/00 (8) · IPC B64B1/40 (7) · IPC B64B1/58 (6) · IPC B64C23/00 (4) · IPC B64C19/00 (4) · IPC B64C1/00 (3) · IPC B64C17/00 (3) · IPC B64C13/04 (2) · IPC B64C33/00 (2) · IPC B64C27/28 (2) · IPC B64C9/00 (2) · IPC B64C31/04 (2) · IPC B64C13/02 (2) · IPC G05D1/08 (2)
CPCs:
None (454) · CPC B64B1/00 (56) · CPC B64C33/02 (8) · CPC B64B1/40 (7) · CPC B64C2700/6281 (6) · CPC B64B1/58 (6) · CPC B64C39/005 (6) · CPC B64C39/00 (5) · CPC B64C27/12 (4) · CPC B64C23/005 (4) · CPC B64C11/001 (4) · CPC B64C27/04 (3) · CPC B64C2700/6295 (3) · CPC B64C17/00 (3) · CPC B64C11/006 (3)
First filing:
Cites these patents:
Citations from after 1930:
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