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发明名称
Article of manufacture for preventing printing work-ups
摘要
申请公布号
US2711131(A)
申请公布日期
1955.06.21
申请号
US19510231544
申请日期
1951.06.14
申请人
SMITH JOHN A
发明人
SMITH JOHN A.
分类号
B41B11/00
主分类号
B41B11/00
代理机构
代理人
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