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发明名称
Small-punch die construction
摘要
申请公布号
US2738008(A)
申请公布日期
1956.03.13
申请号
US19520289350
申请日期
1952.05.22
申请人
HEYMAN MOSES D
发明人
HEYMAN MOSES D.
分类号
B21D28/34;B21D55/00
主分类号
B21D28/34
代理机构
代理人
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地址
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