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发明名称
Improvements in or relating to dark trace tubes and the operation thereof
摘要
申请公布号
GB621097(A)
申请公布日期
1949.04.04
申请号
GB19470003996
申请日期
1947.02.11
申请人
SCOPHONY LIMITED;GUSTAV WIKKENHAUSER;DONALD PETER FRANKLIN
发明人
分类号
H01J29/14
主分类号
H01J29/14
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