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发明名称
Loose leaf binder
摘要
申请公布号
US2204918(A)
申请公布日期
1940.06.18
申请号
US19380239792
申请日期
1938.11.10
申请人
TRUSSELL MANUFACTURING COMPANY
发明人
TRUSSELL CLARENCE D.
分类号
B42F13/26
主分类号
B42F13/26
代理机构
代理人
主权项
地址
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