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经营范围
发明名称
Summen- und Differenzwandler.
摘要
申请公布号
AT134914(B)
申请公布日期
1933.10.10
申请号
ATD134914
申请日期
1929.10.19
申请人
ELEKTRIZITAETS-ACTIEN-GESELLSCHAFT VORM. W. LAHMEYER & CO.
发明人
DR. WALTER BUETOW
分类号
主分类号
代理机构
代理人
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