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发明名称
Duplicator
摘要
申请公布号
US2053581(A)
申请公布日期
1936.09.08
申请号
US19340742279
申请日期
1934.08.31
申请人
ROCKHILL ROSCOE R
发明人
ROCKHILL ROSCOE R.
分类号
B65H29/56
主分类号
B65H29/56
代理机构
代理人
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