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发明名称
摘要
申请公布号
JP2977927(B2)
申请公布日期
1999.11.15
申请号
JP19910070015
申请日期
1991.04.02
申请人
OYO KODEN KENKYUSHITSU KK;SUMITOMO OOSAKA SEMENTO KK
发明人
TOKITA HIRONORI
分类号
G02B27/10;G02B27/28;(IPC1-7):G02B27/28
主分类号
G02B27/10
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