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Patents > CPCs : CPC B64C23/005 or CPC B64C2700/6218

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None (541) · Seine (9) · Seine-et-Oise (4) · Indiana (4) · Paris (4) · California (4) · New York (3) · Nord (3) · Maine-et-Loire (2) · New York county (2) · Meurthe-et-Moselle (2) · Minnesota (2) · Budapest (2) · Chicago (2) · the Bronx (2) · Birmingham (2)
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None (457) · Patent FR-1909-410140 (3) · Patent DE-1911-11-16 Otto Albin Budig (3)
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None (188) · None (30) · Armengaud jeune (13) · J. Bonnet-Thirion (10) · E. Blétry (9) · Victor J. Evans (9) · Marks & Clerk (9) · J. Germain (7) · Boult, Wade & Tennant (7) · Schwab (7) · J. Fayollet (6) · Munn & Co. (6) · Brandon frères (5) · Lavoix et Mosès (5) · P. Follin (5) · W. P. Thompson & Co. (5) · Chassevent (5) · G. de Mestral et F. Harlé (5) · Edward Evans & Co. (5)
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FR 6.4 (235) · None (230) · USPC 244/6 (46) · USPC 244/66 (19) · USPC 244/12.1 (16) · USPC 244/60 (6) · USPC 244/80 (6) · USPC 244/139 (5) · DE 77h.5 (5) · FR 6.3 (5) · USPC 244/35R (5) · USPC 244/48 (4) · DE 77 (4) · USPC 244/100R (3) · USPC 244/51 (3) · USPC 244/65 (3) · USPC 244/104R (3) · DE 77h (3)
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