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发明名称
improvements relating to electric arc welding systems
摘要
申请公布号
GB767689(A)
申请公布日期
1957.02.06
申请号
GB19530008290
申请日期
1953.03.25
申请人
THE BRITISH ELECTRICAL AND ALLIED INDUSTRIES RESEARCH ASSOCIATION
发明人
NEEDHAM JAMES CHRISTOPHER
分类号
B23K9/073
主分类号
B23K9/073
代理机构
代理人
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地址
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