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发明名称
Cathode-ray device
摘要
申请公布号
US2534372(A)
申请公布日期
1950.12.19
申请号
US19480060887
申请日期
1948.11.19
申请人
BELL TELEPHONE LABORATORIES, INCORPORATED
发明人
RING DOUGLAS H.
分类号
H01J31/06
主分类号
H01J31/06
代理机构
代理人
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地址
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