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经营范围
发明名称
Kathodenstrahloszillograph
摘要
申请公布号
DE540083(C)
申请公布日期
1931.12.09
申请号
DED540083D
申请日期
1930.09.19
申请人
DR.-ING. KARL BERGER
发明人
分类号
H01J29/48
主分类号
H01J29/48
代理机构
代理人
主权项
地址
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