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发明名称
Binder for catalogues and the like
摘要
申请公布号
US2320102(A)
申请公布日期
1943.05.25
申请号
US19420453330
申请日期
1942.08.03
申请人
NATIONAL BLANK BOOK COMPANY
发明人
SCHADE JOHN
分类号
B42F13/28
主分类号
B42F13/28
代理机构
代理人
主权项
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