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Patents > Inventor country : AU or GB or HU or NL or NO & Applicant type : COMPANY or INDIV or UNIV-PRO-GOV & Number of claims: 3-4

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Tech fields:
Airplane (76) · stability (51) · design (51) · None (47) · frame (44) · LTA (44) · propulsion (41) · control (36) · construction (36) · wings (36) · propellers (31) · subsystem (26) · aerodynamics (21) · navigation (20) · lift (18) · fuselage (17) · rudder (16) · whole (14) · Airship (14)
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Supplementary to patent:
None (301) · Patent GB-1909-2111 (4) · Patent HU-1909-49726 (2) · Patent GB-1909-12556 (2) · Patent GB-1908-4519 (2) · Patent GB-1913-16499 (2) · Patent GB-1914-20119 (2) · Patent GB-1910-21231 (2) · Patent GB-1910-885 (2) · Patent AU-1916-630 (2) · Patent NO-1915-12-15 Carl Alfred Johansson (2)
Related to aircraft:
Patent agent:
None (113) · Marks & Clerk (21) · None (18) · Brewer & Son (11) · Boult, Wade & Tennant (7) · G. F. Redfern & Co. (7) · Haseltine, Lake & Co. (6) · Abel & Imray (4) · Wheatley & Mackenzie (4) · J. S. Withers & Spooner (4) · A. M. & William Clark (4) · Phillips & Leigh (4) · Hy. Fairbrother (3) · Hyde & Heide (3) · W. P. Thompson & Co. (3) · Eric W. Walford (3) · James L. Norris (3) · Brierley & Howard (3) · A. A. Thornton (3) · Mewburn, Ellis & Pryor (3)
National tech categories:
None (244) · HU V/h (40) · FR 6.4 (24) · AT 77d (6) · DK 77 (5) · GB 4 propel & steer (3) · DE 77h.7 (3) · USPC 244/30 (2) · USPC 244/35R (2) · HU VII/a (2) · USPC 244/51 (2) · USPC 244/225 (2) · DE 77h.6 (2)
IPCs:
None (142) · IPC B64C3/00 (19) · IPC B64C39/00 (17) · IPC B64C1/00 (16) · IPC B64B1/00 (16) · IPC B64C17/00 (16) · IPC B64C3/18 (12) · IPC B64C35/00 (11) · IPC B64C23/00 (9) · IPC B64C13/00 (8) · IPC B64C3/38 (6) · IPC B64C25/00 (6) · IPC B64C3/54 (5) · IPC B64C9/00 (5) · IPC B64C3/48 (4) · IPC B64C11/00 (4) · IPC B64C29/00 (4) · IPC B64C11/18 (4) · IPC B64C27/04 (4) · IPC B64C27/20 (4)
CPCs:
None (107) · CPC B64B1/00 (19) · CPC B64C3/00 (18) · CPC B64C2700/6295 (17) · CPC B64C17/00 (16) · CPC B64C39/00 (13) · CPC B64C23/005 (12) · CPC B64C35/00 (10) · CPC B64C13/00 (10) · CPC B64C2700/6233 (9) · CPC B64C2700/6235 (9) · CPC B64C2700/6274 (8) · CPC B64C2700/6256 (8) · CPC B64C3/185 (6) · CPC B64C9/00 (6) · CPC B64C2700/6218 (6) · CPC B64C3/18 (6) · CPC B64C3/48 (6) · CPC B64C3/385 (6)
First filing:
Cites these patents:
None (361) · Patent GB-1912-15735 (2) · Patent GB-1912-5966 (2)
Citations from after 1930:
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