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发明名称
DOCUMENT READING LENS
摘要
申请公布号
JPH01121811(A)
申请公布日期
1989.05.15
申请号
JP19870280442
申请日期
1987.11.06
申请人
RICOH CO LTD
发明人
KOUCHIWA TAIRA;SHINOHARA KOICHI;NISHINA KIICHIRO;TAKAURA ATSUSHI;ICHINOMIYA KOJI
分类号
G02B13/18;G02B13/24
主分类号
G02B13/18
代理机构
代理人
主权项
地址
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