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发明名称
Verfahren zum Vergleich der Anzeige eines Normalinstrumentes mit derjenigen eines Prueflings
摘要
申请公布号
DE840451(C)
申请公布日期
1952.06.13
申请号
DE1950E000876
申请日期
1950.03.26
申请人
ELSTER & CO. AKTIENGESELLSCHAFT
发明人
MEYER GEORG
分类号
G03B17/24
主分类号
G03B17/24
代理机构
代理人
主权项
地址
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