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发明名称
摘要
申请公布号
FR2334984(B1)
申请公布日期
1982.05.28
申请号
FR19760034429
申请日期
1976.11.16
申请人
RANK ORGANISATION LTD
发明人
分类号
G02B5/18;G02B5/32;G03F7/00;(IPC1-7):G03F7/00
主分类号
G02B5/18
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