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经营范围
发明名称
Elektrischer Vakuum-Entladungsapparat.
摘要
申请公布号
CH156259(A)
申请公布日期
1932.07.31
申请号
CHD156259
申请日期
1931.08.08
申请人
AKTIENGESELLSCHAFT BROWN, BOVERI & CIE.
发明人
CIE. AKTIENGESELLSCHAFT BROWN, BOVERI &
分类号
主分类号
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