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发明名称
Improvements relating to electric resistance seam-welding machines
摘要
申请公布号
GB817425(A)
申请公布日期
1959.07.29
申请号
GB19560009921
申请日期
1956.03.29
申请人
MILAN VLTAVSKY
发明人
分类号
B23K11/25
主分类号
B23K11/25
代理机构
代理人
主权项
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