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发明名称
Electro-optical apparatus
摘要
申请公布号
US2248985(A)
申请公布日期
1941.07.15
申请号
US19380226633
申请日期
1938.08.25
申请人
BELL TELEPHONE LABORATORIES, INCORPORATED
发明人
GRAY FRANK
分类号
H01J29/43;H01J29/45;H01J31/26
主分类号
H01J29/43
代理机构
代理人
主权项
地址
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