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发明名称
OVERHEAD PROJECTOR
摘要
申请公布号
JPH06130492(A)
申请公布日期
1994.05.13
申请号
JP19920278685
申请日期
1992.10.16
申请人
TOHOKU RICOH CO LTD
发明人
KITANO KAZUHIKO
分类号
G03B21/132;G03B21/16;(IPC1-7):G03B21/132
主分类号
G03B21/132
代理机构
代理人
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