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发明名称
Schaltungsanordnung zur Anzeige oder Aufzeichnung von Veraenderungen in einer Menge
摘要
申请公布号
DE537148(C)
申请公布日期
1931.10.30
申请号
DE1929W084166D
申请日期
1929.11.09
申请人
WESTINGHOUSE ELECTRIC & MANUFACTURING COMPANY
发明人
分类号
H03F3/36
主分类号
H03F3/36
代理机构
代理人
主权项
地址
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