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发明名称
Improvements in or relating to electronic frequency converting apparatus, particularly for resistance welding
摘要
申请公布号
GB673510(A)
申请公布日期
1952.06.04
申请号
GB19500013266
申请日期
1950.05.26
申请人
WESTINGHOUSE ELECTRIC INTERNATIONAL COMPANY
发明人
分类号
B23K11/24;H02M5/00
主分类号
B23K11/24
代理机构
代理人
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