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发明名称
Welding
摘要
申请公布号
US2294498(A)
申请公布日期
1942.09.01
申请号
US19400368533
申请日期
1940.12.04
申请人
UNITED STATES STEEL CORPORATION
发明人
HEINDLHOFER KALMAN
分类号
B23K9/073
主分类号
B23K9/073
代理机构
代理人
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