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发明名称
Process of making resistor elements
摘要
申请公布号
US2169020(A)
申请公布日期
1939.08.08
申请号
US19370128183
申请日期
1937.02.27
申请人
WESTINGHOUSE ELECTRIC & MANUFACTURING COMPANY
发明人
BRACE PORTER H.
分类号
C22F1/10
主分类号
C22F1/10
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