Drilldown: Patents

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Patents > National tech categories : USPC 244/66 or USPC 244/80 or None & CPCs : CPC B64B1/58 or CPC B64C2700/6274 or CPC B64C35/00

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Tech fields:
None (240) · LTA (39) · frame (23) · hydroaeroplane (20) · Airplane (20) · hybrid (16) · hydroplane (15) · marine (13) · propulsion (11) · design (11) · construction (10) · balloon (10) · fabric (9) · envelope (8) · landing (8) · stability (8) · airship (7) · whole (7) · car (7)
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Supplementary to patent:
None (320) · Patent US-1913-1094989 (2) · Patent FR-1916-493411 (2)
Related to aircraft:
Patent agent:
None (238) · Marks & Clerk (14) · Boult, Wade & Tennant (11) · John P. Tarbox (6) · Haseltine, Lake & Co. (5) · Herbert Haddan & Co. (5) · Brewer & Son (5) · W. P. Thompson & Co. (4) · Abel & Imray (4) · Edward Evans & Co. (4) · None (3)
National tech categories: (Click arrow to add another value)
CPCs: (Click arrow to add another value)
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