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经营范围
发明名称
Improvements in or relating to arc welding circuits
摘要
申请公布号
GB818510(A)
申请公布日期
1959.08.19
申请号
GB19570018853
申请日期
1957.06.14
申请人
WESTERN ELECTRIC COMPANY
发明人
分类号
B23K9/22
主分类号
B23K9/22
代理机构
代理人
主权项
地址
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