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经营范围
发明名称
Improvements connected with electrical regulating systems and apparatus
摘要
申请公布号
GB581850(A)
申请公布日期
1946.10.28
申请号
GB19440009143
申请日期
1944.05.12
申请人
BENNO SCHWARZ
发明人
分类号
主分类号
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