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Patents > Office : BE or Other & CPCs : CPC B22D33/00 or CPC B64C13/00

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Office: (Click arrow to add another value)
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Tech fields:
None (200) · airplane (128) · control (109) · stability (75) · navigation (59) · rudder (56) · steering (48) · frame (45) · design (31) · wings (28) · aerodynamics (21) · subsystem (15) · automatic stability (15) · construction (14) · Propellers (14) · lift (13) · wheels (11) · wing warping (9) · aileron (9)
Full specification filed date:
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Supplementary to patent:
None (408) · Patent US-1909-970771 (3) · Patent US-1910-1055379 (3) · Patent FR-1912-451312 (2) · Patent GB-1913-3848 (2) · Patent US-1913-1118124 (2) · Patent GB-1911-04-28 Belton Tattnall Hamilton (2) · Patent DE-1918-388537 (2) · Patent FR-1908-392672 (2) · Patent US-1909-1008096 (2)
Related to aircraft:
Patent agent:
None (262) · Armengaud jeune (13) · Munn & Co. (10) · Brewer & Son (9) · Marks & Clerk (9) · Weismann et Marx (7) · Haseltine, Lake & Co. (7) · Abel & Imray (4) · None (4) · Brierley & Howard (4) · Boult, Wade & Tennant (4) · Paul Blum (3) · Noyes & Harriman‎ (3) · Brierley & Appleyard (3) · H. Bœttcher fils (3) · Brandon freres (3)
National tech categories:
None (178) · FR 6.4 (74) · USPC 244/233 (36) · USPC 244/90R (32) · DE 77h.5 (20) · USPC 244/78.1 (17) · USPC 244/82 (13) · USPC 244/87 (13) · USPC 244/225 (9) · USPC 244/231 (9) · USPC 244/234 (9) · USPC 244/88 (8) · USPC 244/237 (8) · USPC 244/89 (6) · USPC 244/232 (6) · USPC 244/80 (6) · USPC 244/100R (6) · USPC 244/119 (5) · USPC 244/35R (4)
CPCs: (Click arrow to add another value)
First filing:
Citations from after 1930:
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