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经营范围
发明名称
Improvements in or relating to double tariff and like apparatus for electric supply systems
摘要
申请公布号
GB347516(A)
申请公布日期
1931.04.30
申请号
GB19300016653
申请日期
1930.05.29
申请人
SIEMENS-SCHUCKERTWERKE AKTIENGESELLSCHAFT
发明人
分类号
B04B9/08;G01R11/56
主分类号
B04B9/08
代理机构
代理人
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