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经营范围
发明名称
Improvements in apparatus for regulating an electric current
摘要
申请公布号
GB411080(A)
申请公布日期
1934.05.31
申请号
GB19320023444
申请日期
1932.08.22
申请人
JENAER GLASWERK SCHOTT & GEN.
发明人
分类号
H02M7/15
主分类号
H02M7/15
代理机构
代理人
主权项
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