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发明名称
Semiautomatic arc welding apparatus and method
摘要
申请公布号
US2470178(A)
申请公布日期
1949.05.17
申请号
US19470794650
申请日期
1947.12.30
申请人
AKTIESELSKABET ESAB
发明人
MADSEN KARL KRISTIAN
分类号
B23K9/14
主分类号
B23K9/14
代理机构
代理人
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