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经营范围
发明名称
GLIMMENTLADUNGSROEHRE MIT REINMETALLKATHODE.
摘要
申请公布号
DE1687811(U)
申请公布日期
1954.11.25
申请号
DE1953P004719U
申请日期
1953.04.10
申请人
"PATELHOLD" PATENTVERWERTUNGS- & ELEKTRO-HOLDING A.G.
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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