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发明名称
INFORMATION RETRIEVING DEVICE
摘要
申请公布号
JPH01207734(A)
申请公布日期
1989.08.21
申请号
JP19880031940
申请日期
1988.02.16
申请人
CANON INC
发明人
IMAI RYOICHI
分类号
G03B21/11;G06F17/30
主分类号
G03B21/11
代理机构
代理人
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地址
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