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发明名称
Binder with individually operable binder rings
摘要
申请公布号
US2879775(A)
申请公布日期
1959.03.31
申请号
US19580755791
申请日期
1958.08.18
申请人
WIRE-O-CORPORATION
发明人
BROOK ARTHUR F.
分类号
B42F13/26
主分类号
B42F13/26
代理机构
代理人
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地址
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