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发明名称
Glühkathode für Entladungsröhren.
摘要
申请公布号
AT133661(B)
申请公布日期
1933.06.10
申请号
ATD133661
申请日期
1931.11.19
申请人
ALLGEMEINE ELEKTRICITAETS-GESELLSCHAFT
发明人
DR. ING. KONRAD MEYER
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