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发明名称
Hochleistungsroehre mit rohrfoermiger Gluehkathode
摘要
申请公布号
DE529986(C)
申请公布日期
1931.07.20
申请号
DE1929S094832D
申请日期
1929.11.09
申请人
SIEMENS & HALSKE AKT.-GES.
发明人
GANSWINDT SIGURD;MATTHIES DR. KURT
分类号
H01J1/20
主分类号
H01J1/20
代理机构
代理人
主权项
地址
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