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发明名称
Improvements in or relating to electric arc-welding devices
摘要
申请公布号
GB910335(A)
申请公布日期
1962.11.14
申请号
GB19590004486
申请日期
1959.02.09
申请人
FRANCIS JACOB NIEMI
发明人
分类号
B23K9/28
主分类号
B23K9/28
代理机构
代理人
主权项
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