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发明名称
Frequenzumformerschaltung, insbesondere fuer Widerstands-schweissmaschinen
摘要
申请公布号
DE831574(C)
申请公布日期
1952.02.14
申请号
DE1950W002359
申请日期
1950.06.10
申请人
WESTINGHOUSE ELECTRIC CORPORATION
发明人
PARSONS JOHN ROLLA
分类号
B23K11/24
主分类号
B23K11/24
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