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经营范围
发明名称
Multiple roll duplicating machine
摘要
申请公布号
US2070797(A)
申请公布日期
1937.02.16
申请号
US19340725036
申请日期
1934.05.11
申请人
DITTO, INCORPORATED
发明人
MARCHEV ALFRED;HERNLUND JOHN W.;MCCAIN CECIL C.
分类号
B41L9/04
主分类号
B41L9/04
代理机构
代理人
主权项
地址
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