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发明名称
Ressort, notamment pour tendre des électrodes dans des tubes électroniques
摘要
申请公布号
FR1225723(A)
申请公布日期
1960.07.04
申请号
FR19596939105
申请日期
1959.02.11
申请人
<<PATELHOLD>> PATENTVERWERTUNGS & ELEKTRO-HOLDING A. G.
发明人
分类号
H01J19/42
主分类号
H01J19/42
代理机构
代理人
主权项
地址
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