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经营范围
发明名称
OPTICAL HEAD DEVICE
摘要
申请公布号
JPH01273232(A)
申请公布日期
1989.11.01
申请号
JP19880101676
申请日期
1988.04.25
申请人
CANON INC
发明人
TATSUNO TORU
分类号
G11B7/09
主分类号
G11B7/09
代理机构
代理人
主权项
地址
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