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发明名称
摘要
申请公布号
NL7018950(A)
申请公布日期
1971.09.30
申请号
NL19700018950
申请日期
1970.12.29
申请人
发明人
分类号
G21C17/00;G21C17/10;(IPC1-7):G21C17/10;H04N9/00
主分类号
G21C17/00
代理机构
代理人
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