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Patents > Granted: Yes & National tech categories : FR 6.3 or GB 4 with buoyant

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Tech fields:
LTA (184) · navigation (136) · Propulsion (132) · balloon (73) · None (58) · aerostat (52) · dirigible (48) · Airplane (33) · airship (32) · ascension (30) · construction (29) · stability (28) · whole (26) · balloons (25) · frame (23) · safety (22) · propellers (22) · rudder (20) · parachute (20) · propeller (20)
Full specification filed date:
Application number:
None (448)
Granted: (Click arrow to add another value)
Supplementary to patent:
None (449) · Patent FR-1907-377174 (3) · Patent FR-1878-124576 (3) · Patent FR-1881-142748 (3)
Related to aircraft:
Patent agent:
None (229) · Armengaud jeune (26) · Chassevent (25) · Blétry aîné (17) · Desnos (15) · Société Marillier et Robelet (13) · Armengaud aîné (12) · Dieuaide (9) · None (9) · Hippolyte Josse (8) · Société Louis Gudman et Cie (7) · Dumas (7) · Casalonga (6) · Société Matray frères (6) · C. Blétry (6) · Société Thirion et Bonnet (5) · Émile Barrault (5) · Thirion (5) · Josse (5) · Weismann et Marx (5)
National tech categories: (Click arrow to add another value)
IPCs:
None (434) · IPC B64B1/00 (56) · 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 B64C31/04 (2) · IPC B64C13/04 (2) · IPC B64C13/02 (2) · IPC B64C33/00 (2) · IPC B64C1/00 (2)
CPCs:
None (432) · CPC B64B1/00 (56) · CPC B64C33/02 (9) · CPC B64C2700/6281 (7) · CPC B64B1/40 (7) · CPC B64C39/005 (6) · CPC B64B1/58 (6) · CPC B64C39/00 (5) · CPC B64C11/001 (4) · CPC B64C27/12 (4) · CPC B64C27/04 (4) · CPC B64C23/005 (4) · CPC B64C2700/6295 (3) · CPC B64C17/00 (3) · CPC B64C11/006 (3) · CPC B64C2700/6273 (2) · CPC B64C13/02 (2) · CPC B64C13/04 (2) · CPC B64C33/00 (2) · CPC B64C31/04 (2)
First filing:
Cites these patents:
Citations from after 1930:
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