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发明名称
LENS FOR READING ORIGINAL
摘要
申请公布号
JPH04184311(A)
申请公布日期
1992.07.01
申请号
JP19900314708
申请日期
1990.11.19
申请人
RICOH CO LTD
发明人
ICHINOMIYA KOJI
分类号
G02B13/24
主分类号
G02B13/24
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