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发明名称
Die process or method
摘要
申请公布号
US2924701(A)
申请公布日期
1960.02.09
申请号
US19570704200
申请日期
1957.12.20
申请人
GENERAL MOTORS CORPORATION
发明人
STAMPER MALCOLM T.
分类号
B21D37/20;B23H9/12
主分类号
B21D37/20
代理机构
代理人
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