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Patents > Year filed: 1909 & Office : DE or GB

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Tech fields:
None (182) · airplane (64) · LTA (54) · stability (45) · design (43) · propulsion (43) · frame (42) · propeller (31) · control (29) · propellers (27) · navigation (26) · subsystem (25) · balloon (23) · whole (23) · wings (20) · automatic stability (16) · construction (16) · steering (13) · hybrid (13)
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Supplementary to patent:
None (365) · Patent DE-1908-227242 (3) · Patent US-1909-940701 (2) · Patent US-1908-935766 (2) · Patent US-1908-927605 (2) · Patent HU-1909-49726 (2) · Patent GB-1909-8531 (2) · Patent GB-1908-21754 (2) · Patent GB-1903-27212 (2) · Patent FR-1909-401348 (2) · Patent FR-1909-399435 (2) · Patent FR-1908-405961 (2) · Patent FR-1908-396839 (2) · Patent FR-1908-393976 (2) · Patent FR-1907-382895 (2) · Patent FR-1908-407411 (2)
Related to aircraft:
Patent agent:
None (232) · Marks & Clerk (32) · Boult, Wade & Tennant (17) · Haseltine, Lake & Co. (13) · Herbert Haddan & Co. (10) · Abel & Imray (10) · None (9) · G. F. Redfern & Co. (7) · Wheatley & Mackenzie (6) · W. H. Beck & Co. (5) · Stephen Watkins, Son & Groves (5) · Lloyd Wise & Co. (4) · Cassell & Co. (4) · Edwards & Co. (4) · J. Owden O'Brien (4) · Cruikshank & Fairweather, Limited (4) · Clement Lean (4) · Edward Evans & Co. (4) · Brierley & Howard (3) · Chatwin, Herschell & Co. (3)
IPCs:
None (181) · IPC B64C39/00 (35) · IPC B64C17/00 (27) · IPC B64C1/00 (22) · IPC B64C3/38 (19) · IPC B64B1/00 (13) · IPC B64C23/00 (13) · IPC B64C13/00 (11) · IPC B64C33/02 (11) · IPC B64C11/00 (9) · IPC B64C25/00 (8) · IPC B64B1/58 (8) · IPC B64C35/00 (7) · IPC B64C3/54 (7) · IPC B64B1/62 (6) · IPC B63H1/12 (6) · IPC B64C27/04 (5) · IPC B64C33/00 (5) · IPC B64C11/16 (5) · IPC B64C3/52 (4)
CPCs:
None (78) · CPC B64C17/00 (33) · CPC B64C3/385 (26) · CPC B64C2700/6295 (25) · CPC B64C39/00 (24) · CPC B64B1/58 (20) · CPC B64B1/00 (19) · CPC B64C11/006 (17) · CPC B64C13/00 (16) · CPC B64C23/005 (16) · CPC B64C33/02 (14) · CPC B64C2700/6256 (13) · CPC B64C2700/6218 (12) · CPC B64C33/00 (12) · CPC B64C2700/6281 (8) · CPC B64C25/62 (8) · CPC B64C39/005 (8)
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First filing:
Cites these patents:
None (461) · 1 (2)
Citations from after 1930:
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