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发明名称
PHOTOCATHODE MANUFACTURING METHOD
摘要
申请公布号
SU568405(A3)
申请公布日期
1977.08.05
申请号
SU19731958617
申请日期
1973.09.26
申请人
RKA CORP (FIRMA)
发明人
ALFRED GERMANN SOMMER,US
分类号
H01J9/02;H01J9/12;H01J43/20;(IPC1-7):H01J9/12
主分类号
H01J9/02
代理机构
代理人
主权项
地址
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