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发明名称
摘要
申请公布号
CH594185(A5)
申请公布日期
1977.12.30
申请号
CH19760002292
申请日期
1976.02.25
申请人
BBC AG BROWN, BOVERI & CIE.
发明人
分类号
C09K19/50;G02B5/30;G02F1/1335;(IPC1-7):G02F1/13
主分类号
C09K19/50
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