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发明名称
PHOTOGRAPH ENLARGER
摘要
申请公布号
JPH05100171(A)
申请公布日期
1993.04.23
申请号
JP19910287108
申请日期
1991.10.07
申请人
TOHOKU RICOH CO LTD
发明人
SATO HISASHI
分类号
G02B21/36
主分类号
G02B21/36
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