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经营范围
发明名称
Gas- oder dampfgefuellte Entladungsroehre
摘要
申请公布号
DE728344(C)
申请公布日期
1942.11.25
申请号
DE1934S116287D
申请日期
1934.12.01
申请人
SIEMENS-SCHUCKERTWERKE AG.
发明人
PUETZER DR. ALFRED
分类号
H01J17/12
主分类号
H01J17/12
代理机构
代理人
主权项
地址
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