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发明名称
Rohrförmige, vakuumdichte Durchführung durch keramische Körper.
摘要
申请公布号
AT157349(B)
申请公布日期
1939.10.25
申请号
ATD157349
申请日期
1938.02.16
申请人
ALLGEMEINE ELEKTRICITAETS-GESELLSCHAFT
发明人
DR. PHIL. HANS PULFRICH
分类号
主分类号
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代理人
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