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发明名称
er
摘要
申请公布号
DE695965(C)
申请公布日期
1940.09.06
申请号
DE1938S130757D
申请日期
1938.02.10
申请人
SIEMENS & HALSKE AKT.-GES.
发明人
CALLISEN DR.-ING. FRITZ-INGER
分类号
H01J47/02
主分类号
H01J47/02
代理机构
代理人
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