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发明名称
Marking rack for business forms
摘要
申请公布号
US2690017(A)
申请公布日期
1954.09.28
申请号
US19520278732
申请日期
1952.03.26
申请人
NEILL JOHN S
发明人
NEILL JOHN S.
分类号
G06K19/00
主分类号
G06K19/00
代理机构
代理人
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