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Patents > CPCs : CPC B64B1/40 or CPC B64C11/006 or CPC G01C 21/18

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None (275) · LTA (112) · propulsion (93) · balloon (47) · propellers (45) · propeller (42) · marine (30) · stability (29) · frame (24) · navigation (24) · design (23) · paddle-wheel (21) · Airplane (20) · airship (18) · aerodynamics (15) · safety (14) · Subsystem (13) · car (13) · wings (12)
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None (526) · Patent GB-1911-12232 (2) · Patent FR-1909-410848 (2) · Patent AU-1909-16369 (2) · Patent US-1911-1003530 (2) · Patent FR-1902-321808 (2) · Patent DE-1912-267069 (2) · Patent GB-1911-2636 (2)
Related to aircraft:
Patent agent:
None (397) · Armengaud jeune (15) · None (10) · Munn & Co. (9) · J. Bonnet-Thirion (6) · Marks & Clerk (5) · E. Blétry (5) · Chassevent (4) · Schwab (4) · Y. Rabilloud et fils (4) · Lloyd Wise & Co. (3) · Hippolyte Josse (3) · Boult, Wade & Tennant (3) · L. Chassevent (3)
National tech categories:
None (346) · FR 6.4 (93) · USPC 244/127 (17) · USPC 416/113 (13) · USPC 244/32 (13) · FR 6.2 (12) · USPC 244/96 (12) · USPC 416/108 (11) · DE 77 (10) · USPC 244/33 (10) · FR 6.3 (10) · USPC 416/116 (8) · USPC 244/31 (8) · DE 77h (6) · USPC 244/99 (5) · DE 77h.6 (5) · USPC 244/71 (5) · FR 5.8 (3)
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