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发明名称
Notebook holder
摘要
申请公布号
US1780042(A)
申请公布日期
1930.10.28
申请号
US19290396267
申请日期
1929.09.30
申请人
RIES HENRY J
发明人
RIES HENRY J.
分类号
B42D9/00
主分类号
B42D9/00
代理机构
代理人
主权项
地址
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