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经营范围
发明名称
Improvements in and relating to arc working
摘要
申请公布号
GB927729(A)
申请公布日期
1963.06.06
申请号
GB19610014229
申请日期
1961.04.20
申请人
UNION CARBIDE CORPORATION
发明人
分类号
B23K9/16;B23K9/167;B23K9/29
主分类号
B23K9/16
代理机构
代理人
主权项
地址
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