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经营范围
发明名称
Glimmlampe, insbesondere fuer Fernsehempfang bzw. Tonfilmaufzeichnung, mit kuenstlich gekuehlter Hohlkathode
摘要
申请公布号
DE643269(C)
申请公布日期
1937.04.03
申请号
DENDATM121231D
申请日期
申请人
MARCONI'S WIRELESS TELEGRAPH COMPANY
发明人
分类号
H01J17/00
主分类号
H01J17/00
代理机构
代理人
主权项
地址
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