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发明名称
Punch and die retainer
摘要
申请公布号
US1821770(A)
申请公布日期
1931.09.01
申请号
US19250061818
申请日期
1925.10.10
申请人
ALLIED PRODUCTS CORPORATION
发明人
RICHARD OTIS K.;RICHARD CLEMENT C.
分类号
B21D28/34
主分类号
B21D28/34
代理机构
代理人
主权项
地址
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