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Patents > Year granted: 1918 & National tech categories : USPC 416/200R or None

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Tech fields:
None (231) · airplane (25) · construction (19) · frame (16) · stability (12) · wings (11) · LTA (11) · design (10) · propulsion (8) · propeller (8) · propellers (7) · hybrid (7) · hydroaeroplane (7) · fuselage (7) · balloon (5) · control (5) · helicopter (5)
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Patent agent:
None (227) · None (6) · Randolph, Jr. (6) · John P. Tarbox (5) · J. S. Withers & Spooner (4) · Brewer & Son (3) · Marks & Clerk (3) · Mewburn, Ellis & Pryor (3) · Haseltine, Lake & Co. (3) · Munn & Co. (2) · Watson E. Coleman (2) · A. A. Thornton (2) · Boult, Wade & Tennant (2) · Victor J. Evans (2) · John Liddle (2) · C. A. Snow & Co. (2) · A. M. & William Clark (2)
National tech categories: (Click arrow to add another value)
CPCs:
CPC B64C2700/6295 (27) · CPC B64B1/00 (18) · CPC B64C3/00 (16) · CPC B64C13/00 (16) · CPC B64C35/00 (15) · CPC B64C17/00 (14) · CPC B64C3/18 (12) · CPC B64C2700/6235 (11) · CPC B64C23/005 (11) · None (9) · CPC B64C25/60 (9) · CPC B64C3/385 (8) · CPC B64C3/185 (8) · CPC B64C39/005 (8) · CPC B64C39/00 (7) · CPC B64C33/02 (7) · CPC B64C3/14 (7) · CPC B64B1/40 (7) · CPC B64C2001/0081 (7)
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