Drilldown: Patents

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Patents > National tech categories : IT 8 or None & Number of figures: 3-4

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Supplementary to patent:
None (434) · Patent CH-1907-41855 (3) · Patent DE-1909-06-09 Romeo Wankmüller (2) · Patent FR-1912-450422 (2) · Patent FR-1916-502839 (2) · Patent GB-1906-27312 (2) · Patent AT-1911-57225 (2) · Patent CH-1910-54251 (2) · Patent FR-1911-426612 (2) · Patent CA-1918-196108 (2) · Patent NZ-1909-25865 (2) · Patent FR-1910-420958 (2) · Patent US-1911-1003530 (2)
Related to aircraft:
Patent agent:
None (93) · Marks & Clerk (36) · Boult, Wade & Tennant (34) · Haseltine, Lake & Co. (27) · Herbert Haddan & Co. (22) · None (21) · Brewer & Son (15) · W. P. Thompson & Co. (13) · Abel & Imray (13) · Wheatley & Mackenzie (13) · Munn & Co. (11) · G. F. Redfern & Co. (10) · Edward Evans & Co. (8) · Mewburn, Ellis & Pryor (8) · Brierley & Howard (7) · A. M. & William Clark (6) · Browne & Co. (6) · Lloyd Wise & Co. (6)
National tech categories: (Click arrow to add another value)
IPCs:
None (253) · IPC B64C39/00 (40) · IPC B64C1/00 (31) · IPC B64C17/00 (28) · IPC B64C13/00 (23) · IPC B64C35/00 (19) · IPC B64C11/00 (17) · IPC B64B1/00 (16) · IPC B64C3/00 (16) · IPC B64C25/00 (13) · IPC B64C3/38 (9) · IPC B64C3/18 (8) · IPC B64C27/04 (6) · IPC B64C23/00 (6) · IPC B64C11/16 (5) · IPC B64C11/04 (5) · IPC B64B1/58 (5) · IPC B64D27/00 (5) · IPC B64C33/02 (5) · IPC B64C3/50 (5)
First filing:
Citations from after 1930:
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