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Patents > Year granted: 1913 & Office : SU or US

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Tech fields:
None (126) · airplane (57) · stability (52) · frame (32) · propeller (27) · navigation (23) · propulsion (22) · rudder (20) · control (18) · LTA (18) · wheels (13) · parachute (13) · helicopter (12) · safety (11) · hybrid (11) · wings (11) · design (10) · car (10) · takeoff (10) · airfoil (9)
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None (52)
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Related to aircraft:
Patent agent:
None (186) · Victor J. Evans (16) · Munn & Co. (9) · B. Singer (4) · None (4) · C. A. Snow & Co. (4) · 1 (3) · William L. Hall (2) · Frank T. Wentworth (2) · Brown & Hopkins (2) · G. H. Strong (2)
National tech categories:
None (32) · USPC 244/80 (17) · USPC 244/233 (14) · USPC 244/45R (11) · USPC 244/100R (7) · USPC 244/93 (7) · USPC 244/90R (7) · USPC 244/147 (7) · USPC 244/104R (7) · USPC 244/234 (7) · USPC 244/48 (6) · USPC 244/79 (6) · USPC 244/73R (5) · USPC 244/119 (5) · USPC 244/60 (5) · USPC 244/51 (5) · USPC 244/87 (5) · USPC 244/13 (5)
CPCs:
None (27) · CPC B64C13/00 (27) · CPC B64C17/00 (25) · CPC B64C2700/6295 (23) · CPC B64B1/00 (15) · CPC B64C23/005 (12) · CPC B64C3/385 (11) · CPC B64C39/005 (10) · CPC B64C11/006 (7) · CPC B64C39/08 (7) · CPC B64C9/00 (6) · CPC B64C25/52 (5) · CPC B64C3/14 (5) · CPC B64C27/12 (5) · CPC B64C13/24 (5) · CPC B64C3/48 (5)
First filing:
Citations from after 1930:

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