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发明名称
Method of bookbinding
摘要
申请公布号
US2579488(A)
申请公布日期
1951.12.25
申请号
US19460705044
申请日期
1946.10.23
申请人
HARRY FREEMAN
发明人
FREEMAN HARRY
分类号
B42C9/00
主分类号
B42C9/00
代理机构
代理人
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