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发明名称
Method and apparatus for metal coating metal pipes by electric fusion
摘要
申请公布号
US2427350(A)
申请公布日期
1947.09.16
申请号
US19430494796
申请日期
1943.07.15
申请人
THE BABCOCK & WILCOX COMPANY
发明人
CARPENTER OTIS R.;KERR HOWARD J.
分类号
B23K9/032
主分类号
B23K9/032
代理机构
代理人
主权项
地址
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