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Patents > Office: US & CPCs : CPC B64C13/00 or CPC B64C17/00

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Tech fields:
None (189) · stability (109) · airplane (96) · frame (48) · navigation (44) · control (37) · rudder (36) · automatic stability (28) · design (18) · propeller (15) · Wings (15) · wheels (13) · LTA (12) · HTA (12) · balance (11) · Propellers (11)
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None (232) · Munn & Co. (20) · Victor J. Evans (16) · Charles W. Hills (4) · Watson E. Coleman (3) · R. S. & A. B. Lacey (3) · Noyes & Harriman‎ (3) · John P. Tarbox (3) · G. H. Strong (3) · C. C. Hines (3) · Knight & Co. (2) · Herbert H. Thompson (2) · H. C. Everett Co. (2) · H. A. Toulmin (2) · E. W. Marshall (2) · Dyer, Dyer, and Taylor (2) · Howard P. Denison (2) · Charles Hill (2) · C. A. Snow & Co. (2) · C. L. Parker (2)
National tech categories:
None (82) · USPC 244/80 (66) · USPC 244/90R (38) · USPC 244/233 (38) · USPC 244/93 (22) · USPC 244/78.1 (17) · USPC 244/87 (15) · USPC 244/82 (15) · USPC 244/177 (13) · USPC 244/234 (10) · USPC 244/225 (10) · USPC 244/231 (9) · USPC 244/237 (9) · USPC 244/92 (8) · USPC 244/100R (8) · USPC 244/89 (8) · USPC 244/88 (8) · USPC 244/232 (6) · USPC 244/119 (5)
CPCs: (Click arrow to add another value)
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