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发明名称
Heading die and method of making it
摘要
申请公布号
US2544302(A)
申请公布日期
1951.03.06
申请号
US19450613510
申请日期
1945.08.30
申请人
CARBOLOY COMPANY, INC.
发明人
DUNCAN HERSHEL B.
分类号
B21J13/02
主分类号
B21J13/02
代理机构
代理人
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地址
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