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Patents > Assigned to: None & National tech categories: None & Family year: 1918

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Tech fields:
None (427) · airplane (32) · control (23) · construction (20) · frame (18) · stability (14) · propellers (13) · LTA (12) · structure (11) · spars (9) · propulsion (9) · subsystem (9) · design (9) · wings (8) · airship (8) · helicopter (6) · propeller (5) · aerodynamics (5) · metal (5)
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Patent agent:
None (419) · Brewer & Son (14) · A. M. & William Clark (9) · None (8) · Boult, Wade & Tennant (6) · Marks & Clerk (6) · Haseltine, Lake & Co. (5) · G. F. Redfern & Co. (4) · Carpmaels, Radford & Newton (3) · Abel & Imray (3) · Herbert Haddan & Co. (3) · Munn & Co. (3)
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IPCs:
None (415) · IPC B64C3/00 (14) · IPC B64C13/00 (12) · IPC B64C3/18 (11) · IPC B64C35/00 (10) · IPC B64C39/00 (9) · IPC B64B1/00 (7) · IPC B64C1/00 (6) · IPC B64C17/00 (6) · IPC B64C1/06 (6) · IPC B64C3/38 (5) · IPC B64C11/20 (5) · IPC B64C11/00 (5) · IPC B64C13/12 (4) · IPC B64C3/26 (4) · IPC B64C1/08 (3) · IPC B64C11/04 (3) · IPC B64C13/24 (3) · IPC B64C27/04 (3) · IPC B64C25/00 (3)
CPCs:
CPC B64C3/00 (37) · CPC B64C2700/6295 (35) · CPC B64C13/00 (32) · CPC B64C39/00 (28) · CPC B64C2700/6256 (24) · CPC B64C2700/6235 (22) · CPC B64C23/005 (22) · CPC B64C3/18 (21) · CPC B64B1/00 (18) · CPC B64C17/00 (18) · CPC B64C35/00 (16) · CPC B64C3/185 (14) · CPC B64C1/065 (14) · CPC B64C2001/0081 (13) · CPC B64B1/40 (13) · CPC B64C2700/6233 (13) · CPC B64C11/04 (12) · CPC B64C2700/6274 (11) · CPC B64C39/005 (10) · CPC B64C3/385 (10)
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