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发明名称
OPTICAL DEVICE AND ITS PRODUCTION
摘要
申请公布号
JPH07248403(A)
申请公布日期
1995.09.26
申请号
JP19940041303
申请日期
1994.03.11
申请人
RICOH OPT IND CO LTD
发明人
UMEKI KAZUHIRO;SATO MASAAKI
分类号
G02B3/00;(IPC1-7):G02B3/00
主分类号
G02B3/00
代理机构
代理人
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