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Patents > Inventor country: None & Supplementary to patent : Patent FR-1912-449167 or None

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None (2834) · Desnos (12) · Armengaud jeune (9) · Blétry aîné (8) · Chassevent (6) · Société Marillier et Robelet (5) · Dieuaide (5) · Marks & Clerk (4) · Dumas (4) · Armengaud aîné (4) · Thirion (4) · Fayollet (3) · None (3) · Caron (3) · Boult, Wade & Tennant (3) · Société Louis Gudman et Cie (3) · Casalonga (3) · Société Matray frères (3) · Société Thirion et Bonnet (3) · Bardin (3)
National tech categories:
None (2459) · FR 6.3 (162) · GB 4 with buoyant (21) · GB 4 propel & steer (21) · GB 4 (19) · USPC 244/147 (18) · USPC 244/139 (18) · USPC 244/142 (16) · USPC 244/153R (13) · GB 4 without buoyant (12) · BE K (12) · DE 77 (10) · USPC 244/53A (9) · USPC 244/149 (9) · FR 6.4 (8) · GB 4 aërostats (7) · FR 5 (7) · USPC 244/144 (7)
IPCs:
None (2938) · IPC B64C39/00 (7) · IPC B64C11/00 (5) · IPC B63H1/12 (3) · IPC B64C3/00 (3) · IPC B64C23/00 (3) · IPC B64B1/00 (3) · IPC B64C17/00 (3)
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