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发明名称
Schaltungsanordnung zur Beseitigung von Erdungsfehlern bei PH-Messungen
摘要
申请公布号
DE845865(C)
申请公布日期
1952.08.07
申请号
DE1950S020851
申请日期
1950.11.11
申请人
SIEMENS & HALSKE AKTIENGESELLSCHAFT
发明人
STAUDE FRITZ
分类号
G01R19/00
主分类号
G01R19/00
代理机构
代理人
主权项
地址
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