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发明名称
摘要
申请公布号
CH589858(A5)
申请公布日期
1977.07.15
申请号
CH19750009819
申请日期
1975.07.28
申请人
VEB CARL ZEISS JENA
发明人
分类号
G02B11/32;G02B13/04;(IPC1-7):G02B9/62
主分类号
G02B11/32
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