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发明名称
Loose-leaf folder
摘要
申请公布号
US2329786(A)
申请公布日期
1943.09.21
申请号
US19420444820
申请日期
1942.05.28
申请人
THE GARDNER-RICHARDSON COMPANY
发明人
RINGLER WILLIAM A.
分类号
B42F13/02
主分类号
B42F13/02
代理机构
代理人
主权项
地址
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