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发明名称
DISPLACEMENT ENLARGING DEVICE
摘要
申请公布号
JPH0416817(A)
申请公布日期
1992.01.21
申请号
JP19900120804
申请日期
1990.05.10
申请人
RICOH CO LTD
发明人
OIKAWA TOMOHIRO;DOKE MICHIO
分类号
G02B26/10;F16H21/44
主分类号
G02B26/10
代理机构
代理人
主权项
地址
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