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Patents > CPCs : CPC B64B1/00 or CPC F02B2720/124 & First filing: Yes

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None (358) · Westminster (3) · California (3) · San Diego (2) · New York (2) · Allegheny county, Pennsylvania (2) · Los Angeles (2) · New York county (2) · London (2) · New York state (2) · Hérault (2) · Hennepin county (2) · PA (2) · Minneapolis, Minnesota (2) · Pittsburgh (2) · Seine (2) · Cleveland (2) · Berlin (2) · Vaucluse (2) · Minnesota (2)
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None (165) · Munn & Co. (17) · None (17) · Boramé et Julien (10) · Marks & Clerk (6) · Armengaud jeune (5) · Michael J. Stark & Sons (5) · Victor J. Evans (5) · Haseltine, Lake & Co. (5) · Abel & Imray (5) · Hippolyte Josse (4) · Randolph, Jr. (4) · Herbert Haddan & Co. (3) · Brewer & Son (3) · Brandon frères (3) · Boult, Wade & Tennant (3) · A. A. Thornton (3) · Chassevent (3) · G. Petiau (3) · E. R. Royston & Co. (3)
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None (118) · FR 6.4 (68) · USPC 244/30 (48) · USPC 244/26 (22) · FR 6.3 (20) · USPC 244/25 (19) · USPC 244/28 (15) · USPC 244/125 (12) · USPC 24/713.8 (11) · DE 77 (10) · USPC 244/29 (9) · USPC 244/67 (9) · DE 77h.2 (6) · USPC 244/64 (4) · USPC 244/96 (4) · USPC 244/99 (4)
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