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发明名称
Elektrisches Halbleiter-Verstärkungselement.
摘要
申请公布号
CH299083(A)
申请公布日期
1954.05.31
申请号
CHD299083
申请日期
1949.11.25
申请人
STANDARD TELEPHON UND RADIO AG.
发明人
AG. STANDARD TELEPHON UND RADIO
分类号
H01J19/78
主分类号
H01J19/78
代理机构
代理人
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地址
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