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经营范围
发明名称
Combined reactor and induction preheater for use in electrode arc welding
摘要
申请公布号
US2416047(A)
申请公布日期
1947.02.18
申请号
US19430494129
申请日期
1943.07.10
申请人
DOLAN GEORGE A
发明人
DOLAN GEORGE A.
分类号
B23K9/235;C21D9/50
主分类号
B23K9/235
代理机构
代理人
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