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Patents > Citations from after 1930: 2-5

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None (312) · New Jersey (4) · New York (4) · Ohio (4) · London (4) · Los Angeles (3) · PA (3) · Pittsburgh (3) · Seine (3) · Illinois (3) · Cleveland (3) · Chicago (3) · Allegheny county, Pennsylvania (3) · Indiana (2) · Michigan (2) · Liverpool (2) · New York state (2) · Kansas (2) · Dayton (2)
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Tech fields:
None (82) · propeller (43) · LTA (37) · frame (28) · Stability (27) · airplane (27) · propulsion (23) · military (23) · helicopter (18) · projectile (17) · kite (15) · marine (15) · parachute (15) · navigation (14) · rudder (13) · Windmill (13) · Safety (13) · construction (11) · control (11) · wheels (11)
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None (355)
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Patent agent:
None (39) · Munn & Co. (25) · None (18) · Victor J. Evans (17) · John P. Tarbox (9) · Marks & Clerk (5) · C. C. Hines (4) · Joshua R. H. Potts (4) · James L. Norris (3) · L. Chassevent (3) · H. C. Evert & Co. (3) · Boult, Wade & Tennant (3) · Armengaud jeune (3)
Assigned to:
None (351) · Kawneer Manufacturing Company (3) · Curtiss Aeroplane (3)
National tech categories:
None (158) · FR 6.4 (19) · USPC 244/3.23 (14) · USPC 244/153R (10) · USPC 244/119 (8) · USPC 244/139 (4) · USPC 244/17.11 (4) · USPC 244/17.15 (4) · USPC 244/17.19 (4) · USPC 244/25 (4) · USPC 244/30 (4) · USPC 244/52 (4) · USPC 244/63 (4) · USPC 244/64 (4) · USPC 244/35R (4) · USPC 416/129 (4) · FR 5.8 (4) · USPC 244/97 (4)
IPCs:
None (222) · IPC B64B1/00 (16) · IPC B64C31/06 (9) · IPC B64C25/00 (9) · IPC B64C31/00 (7) · IPC B64C3/00 (7) · IPC B64C39/00 (6) · IPC B64C23/00 (6) · IPC B64C13/00 (5) · IPC F42B10/00 (5) · IPC B64C17/00 (5) · IPC B64C33/02 (5) · IPC B64C35/00 (4) · IPC B64C1/00 (4) · IPC B64C33/00 (4) · IPC B64C27/04 (4)
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Citations from after 1930:
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