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发明名称
Device for mechanically turning pages of books
摘要
申请公布号
US2508913(A)
申请公布日期
1950.05.23
申请号
US19470786824
申请日期
1947.11.17
申请人
LEONID GORLENKO
发明人
GORLENKO LEONID
分类号
B42D9/06
主分类号
B42D9/06
代理机构
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