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发明名称
Method of binding books
摘要
申请公布号
US2645795(A)
申请公布日期
1953.07.21
申请号
US19470739165
申请日期
1947.04.03
申请人
PITNER LLOYD E
发明人
PITNER LLOYD E.
分类号
B42C9/00
主分类号
B42C9/00
代理机构
代理人
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