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Patents > CPCs : CPC B60S1/0491 or CPC B64C23/005 or CPC B64C33/02

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None (580) · Seine (13) · Paris (6) · Chicago (6) · Seine-et-Oise (5) · Indiana (4) · New York county (3) · Lorient (3) · Meurthe-et-Moselle (3) · Minnesota (3) · Missouri (3) · Morbihan (3) · Cleveland (3) · New York (3) · California (3) · Rhône (3) · Nord (3) · Aisne (3)
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None (562) · Patent BE-1910-12-28-Muehter (3) · Patent FR-1909-410140 (3) · Patent FR-1908-407411 (3) · Patent GB-1909-12556 (3) · Patent FR-1909-404954 (2) · Patent FR-1912-446040 (2) · Patent FR-1908-394254‎ (2) · Patent FR-1915-525800 (2) · Patent DE-1910-09-03 Richard Blum (2) · Patent DE-1910-06-18 Carl Hanschke (2) · Patent DE-1909-244441 (2) · Patent DE-1909-220044 (2) · Patent DE-1907-217533 (2) · Patent IT-1907-87304 (2) · Patent FR-1909-420004 (2) · Patent AU-1916-630 (2) · Patent AT-1909-40038 (2)
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FR 6.4 (218) · None (203) · USPC 244/22 (66) · USPC 244/6 (46) · DE 77h.10 (21) · USPC 244/66 (19) · USPC 244/72 (19) · USPC 244/12.1 (16) · DE 77 (16) · FR 6.3 (12) · USPC 244/35R (6) · USPC 244/60 (6) · USPC 244/80 (6) · DE 77h (6) · USPC 244/139 (5) · USPC 244/48 (4)
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None (694)
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