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发明名称
Method and apparatus for rolling bimetallic articles
摘要
申请公布号
US2134014(A)
申请公布日期
1938.10.25
申请号
US19350023430
申请日期
1935.05.25
申请人
COPPERWELD STEEL COMPANY
发明人
WHITEHEAD FREDERICK A.
分类号
B23K20/04
主分类号
B23K20/04
代理机构
代理人
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地址
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