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Patents > Office : BE or Other & CPCs : CPC B22D33/00 or CPC B64C2700/6256 or CPC B64C3/385

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Office: (Click arrow to add another value)
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Tech fields:
None (247) · airplane (128) · control (71) · stability (61) · frame (40) · steering (39) · wings (37) · navigation (33) · Design (29) · rudder (29) · aerodynamics (23) · lift (17) · construction (16) · subsystem (16) · wheels (14) · airfoil (12) · sustentation (11) · automatic stability (11) · fuselage (10) · landing (10)
Full specification filed date:
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Supplementary to patent:
None (403) · Patent FR-1908-392672 (3) · Patent US-1912-1062545 (3) · Patent FR-1912-449167 (3) · Patent FR-1912-457441 (2) · Patent US-1913-1118124 (2) · Patent GB-1911-04-28 Belton Tattnall Hamilton (2) · Patent US-1909-1008096 (2) · Patent GB-1913-3848 (2) · Patent CA-1910-131159 (2) · Patent FR-1912-451312 (2)
Related to aircraft:
Patent agent:
None (253) · Armengaud jeune (17) · Marks & Clerk (13) · None (9) · Brewer & Son (9) · Haseltine, Lake & Co. (6) · J. S. Withers & Spooner (5) · Weismann et Marx (5) · L. Chassevent (5) · E. Blétry (5) · J. Bonnet-Thirion (4) · Schwab (4) · Abel & Imray (4) · Brierley & Howard (4)
National tech categories:
None (264) · FR 6.4 (114) · USPC 244/48 (26) · USPC 244/99.11 (9) · USPC 244/90R (8) · DE 77h.5 (8) · USPC 244/38 (7) · USPC 244/119 (5) · USPC 244/231 (4) · USPC 244/234 (4) · USPC 244/88 (4) · USPC 244/65 (3) · USPC 244/47 (3) · USPC 244/113 (3) · USPC 244/87 (3)
CPCs: (Click arrow to add another value)
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