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发明名称
Ondoscope cathodique électrique
摘要
申请公布号
FR799291(A)
申请公布日期
1936.06.10
申请号
FRD799291
申请日期
1935.12.13
申请人
"OSA" PARTICIPATIONS INDUSTRIELLES
发明人
分类号
H01J13/48;H01J17/40
主分类号
H01J13/48
代理机构
代理人
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地址
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