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发明名称
Direkt geheizte Gluehkathode fuer Hochleistungselektronenroehren
摘要
申请公布号
DE848224(C)
申请公布日期
1952.09.01
申请号
DE1943P001325D
申请日期
1943.07.24
申请人
PATELHOLD PATENTVERWERTUNGS- & ELEKTRO-HOLDING A.-G.
发明人
SCHAERLI OTTO
分类号
H01J1/18
主分类号
H01J1/18
代理机构
代理人
主权项
地址
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