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发明名称
Control cam and apparatus for positioning the same
摘要
申请公布号
US2643552(A)
申请公布日期
1953.06.30
申请号
US19470762949
申请日期
1947.07.23
申请人
OWENS FREEMAN H
发明人
OWENS FREEMAN H.
分类号
G07F15/00;G07F17/30
主分类号
G07F15/00
代理机构
代理人
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