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发明名称
Notebook holder
摘要
申请公布号
US1825522(A)
申请公布日期
1931.09.29
申请号
US19240724065
申请日期
1924.07.03
申请人
THE TURNAPAGE COMPANY, INC.
发明人
HARNSRERGER HARRY H.
分类号
B41J29/15
主分类号
B41J29/15
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代理人
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