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发明名称
OVERHEAD PROJECTOR DEVICE
摘要
申请公布号
JPH01221731(A)
申请公布日期
1989.09.05
申请号
JP19880048007
申请日期
1988.02.29
申请人
DAISO CO LTD
发明人
SAIGA TETSUYUKI
分类号
G03B21/132;G09F9/00;H04N5/74
主分类号
G03B21/132
代理机构
代理人
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地址
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