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发明名称
Method and apparatus for metal working
摘要
申请公布号
US3015387(A)
申请公布日期
1962.01.02
申请号
US19580731736
申请日期
1958.04.29
申请人
THE BABCOCK & WILCOX COMPANY
发明人
EVANS SIDLEY O.
分类号
B21C23/21;B21C23/32
主分类号
B21C23/21
代理机构
代理人
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