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发明名称
Composite die
摘要
申请公布号
US2887971(A)
申请公布日期
1959.05.26
申请号
US19540439089
申请日期
1954.06.24
申请人
GENERAL MOTORS CORPORATION
发明人
KALIS EDWARD R.
分类号
B21D37/20
主分类号
B21D37/20
代理机构
代理人
主权项
地址
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