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经营范围
发明名称
Loose leaf binder
摘要
申请公布号
US1993969(A)
申请公布日期
1935.03.12
申请号
US19340719682
申请日期
1934.04.09
申请人
STATIONERS LOOSE LEAF COMPANY
发明人
LOTTER ADOLPH G.
分类号
B42F13/00
主分类号
B42F13/00
代理机构
代理人
主权项
地址
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