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发明名称
Roller attachment for lithographic machines
摘要
申请公布号
US2083497(A)
申请公布日期
1937.06.08
申请号
US19350045629
申请日期
1935.10.18
申请人
DIX RALPH C
发明人
DIX RALPH C.
分类号
B41F31/30
主分类号
B41F31/30
代理机构
代理人
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