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发明名称
Dispositif à décharge à rayon cathodique pour systèmes de télévision et autressystèmes de signalisation
摘要
申请公布号
FR719632(A)
申请公布日期
1932.02.08
申请号
FRD719632
申请日期
1931.07.06
申请人
ELECTRICAL RESEARCH PRODUCTS INC.
发明人
分类号
H01J29/52
主分类号
H01J29/52
代理机构
代理人
主权项
地址
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