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Patents > CPCs : CPC B64C13/00 or CPC B64C2700/6256 & First filing: Yes

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None (310) · New York (3) · Seine (2) · New York county (2) · Manchester (2) · Ohio (2) · New York City (2) · TX (2) · Bexar county (2)
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None (152) · Munn & Co. (14) · Marks & Clerk (8) · Brewer & Son (8) · Haseltine, Lake & Co. (5) · Boult, Wade & Tennant (5) · Brierley & Howard (4) · Armengaud jeune (4) · Weismann et Marx (4) · H. A. Toulmin (3) · H. Boettcher fils (3) · Victor J. Evans (3)
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None (126) · FR 6.4 (45) · USPC 244/233 (30) · USPC 244/90R (27) · USPC 244/78.1 (13) · USPC 244/87 (11) · USPC 244/234 (8) · USPC 244/225 (8) · USPC 244/237 (7) · USPC 244/82 (7) · USPC 244/231 (6) · USPC 244/88 (6) · USPC 244/89 (5) · USPC 244/80 (5) · USPC 244/35R (4) · USPC 244/232 (4) · USPC 244/100R (4) · USPC 244/119 (4) · USPC 244/104R (3) · DE 77h.5 (3)
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