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发明名称
Improvements in the construction of cathodes for cathode-ray tubes
摘要
申请公布号
GB441324(A)
申请公布日期
1936.01.16
申请号
GB19350019070
申请日期
1935.07.03
申请人
FERNSEH AKTIENGESELLSCHAFT
发明人
分类号
H01J29/48
主分类号
H01J29/48
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代理人
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