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Patents > IPCs : IPC B64C3/26 or None & Citations from after 1930: 1-2

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None (306) · Pennsylvania (5) · Ohio (5) · New York (5) · Los Angeles (3) · Philadelphia (3) · Illinois (3) · Cleveland (3) · St. Louis (3) · Liverpool (3) · PA (3) · Allegheny county, Pennsylvania (3) · Michigan (2) · Washington (2) · New York City (2) · New York county (2) · Pittsburgh (2) · San Diego (2)
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Tech fields:
None (93) · propeller (49) · stability (41) · propulsion (39) · airplane (37) · frame (33) · navigation (26) · LTA (25) · rudder (20) · safety (18) · control (17) · marine (17) · parachute (16) · wheels (15) · helicopter (14) · car (13) · military (11) · Windmill (11) · takeoff (10) · ornithopter (9)
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Patent agent:
None (40) · Munn & Co. (37) · Victor J. Evans (22) · None (16) · C. A. Snow & Co. (6) · John P. Tarbox (4) · C. C. Hines (4) · Watson E. Coleman (3) · Knight Bros. (3) · Joshua R. H. Potts (3) · Chandler & Chandler (3) · A. M. Wilson (3)
Assigned to:
None (348) · Curtiss Aeroplane (2)
National tech categories:
None (159) · USPC 244/45R (10) · USPC 244/80 (9) · USPC 244/119 (7) · USPC 244/90R (6) · USPC 244/6 (6) · USPC 244/3.23 (6) · USPC 244/22 (6) · USPC 244/20 (5) · USPC 244/177 (5) · USPC 244/35R (5) · USPC 244/66 (4) · USPC 244/93 (4) · USPC 244/17.19 (4) · USPC 416/129 (4) · USPC 244/100R (4)
IPCs: (Click arrow to add another value)
CPCs:
None (22) · CPC B64C27/54 (19) · CPC B64C13/00 (18) · CPC B64C17/00 (18) · CPC B64C23/005 (18) · CPC B64C11/48 (16) · CPC B64B1/00 (16) · CPC B64C2700/6295 (16) · CPC B64C11/006 (14) · CPC B64C39/005 (13) · CPC B64C33/02 (11) · CPC B64C39/08 (10) · CPC B64C3/385 (10) · CPC B64C11/36 (9) · CPC B64C11/04 (9) · CPC F03D3/00 (8) · CPC F16B2/02 (8) · CPC Y02E10/74 (8) · CPC Y10T403/4677 (8)
First filing:
Citations from after 1930:
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