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发明名称
MANUFACTURE FOR DIRECTLY HEATED TYPE CATHOD RAY TUBE COMPOSITE CATHODE MATERIAL
摘要
申请公布号
JPS5395564(A)
申请公布日期
1978.08.21
申请号
JP19770009695
申请日期
1977.02.02
申请人
HITACHI LTD
发明人
KOYAMA TETSUO;TENNO HIROSHI;ANDOU HISASHI;SAKAMOTO HIROSHI;OOTAKA KIYOSHI
分类号
H01J9/04
主分类号
H01J9/04
代理机构
代理人
主权项
地址
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