Drilldown: Patents

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Patents > Tech fields : Flapping or balloon & Grant date: 1900 - 1999

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Supplementary to patent:
None (322) · Patent DE-1909-Wilcke-Graff (4) · Patent SE-1906-23283 (4) · Patent FR-1899-292828 (4) · Patent FR-1899-Boinet (4) · Patent US-1916-1208684 (4) · Patent DE-1907-192662 (3) · Patent US-1906-850616 (3) · Patent SE-1906-25199 (3) · Patent HU-1904-31053 (3) · Patent FR-1908-407411 (3) · Patent FR-1902-321808 (3) · Patent DE-1907-194166 (3) · Patent AT-1907-37570 (3) · Patent AT-1912-75092 (3)
Related to aircraft:
Patent agent:
None (200) · Marks & Clerk (13) · Munn & Co. (10) · Victor J. Evans (6) · Armengaud jeune (6) · Boult, Wade & Tennant (6) · Haseltine, Lake & Co. (6) · Herbert Haddan & Co. (6) · Brandon frères (5) · Chassevent (5) · H. C. Everett Co. (4) · H. Bœttcher fils (4) · C. Blétry (4) · E. Blum & Co. (4) · None (4)
National tech categories:
None (122) · FR 6.4 (74) · AT 77d (37) · USPC 244/22 (25) · HU V/h (21) · FR 6.3 (18) · USPC 244/72 (13) · RU Group V (10) · DE 77h (9) · USPC 244/11 (9) · USPC 244/97 (7) · DK 77 (7) · USPC 244/28 (6) · USPC 244/127 (5) · USPC 244/30 (4) · USPC 244/64 (4) · GB 4 propel & steer (4) · USPC 244/125 (4) · DE 77h.10 (4)
IPCs:
None (284) · IPC B64B1/00 (56) · IPC B64C33/02 (29) · IPC B64C33/00 (24) · IPC B64B1/58 (20) · IPC B64B1/40 (9) · IPC B64B1/62 (5) · IPC B64C39/00 (5) · IPC B64B1/12 (4) · IPC B64C11/00 (3) · IPC B64B1/60 (3) · IPC B64B (3) · IPC B64C23/00 (3) · IPC B64C3/54 (3) · IPC B64C3/26 (2) · IPC B64C3/38 (2)
CPCs:
None (161) · CPC B64C33/02 (73) · CPC B64B1/00 (72) · CPC B64B1/58 (29) · CPC B64B1/40 (28) · CPC B64C33/00 (25) · CPC B64B1/62 (11) · CPC B64C39/005 (8) · CPC B64C23/005 (6) · CPC B64C39/008 (5) · CPC B64B1/12 (4) · CPC B64C3/14 (4) · CPC B64C3/54 (4) · CPC B64C11/006 (3) · CPC B64C13/00 (3) · CPC B64C31/04 (3) · CPC B64C39/003 (3)
First filing:
Citations from after 1930:
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