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发明名称
Expandable post binder
摘要
申请公布号
US2832349(A)
申请公布日期
1958.04.29
申请号
US19550555801
申请日期
1955.12.28
申请人
NATIONAL BLANK BOOK COMPANY
发明人
SCHADE FRANK STANLEY
分类号
B42F13/12
主分类号
B42F13/12
代理机构
代理人
主权项
地址
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