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发明名称
PHOTODETECTOR
摘要
申请公布号
JPH03154237(A)
申请公布日期
1991.07.02
申请号
JP19890294428
申请日期
1989.11.13
申请人
RICOH CO LTD
发明人
ISHIKAWA YASUHIKO
分类号
G11B7/00;G11B7/005;G11B7/0055;G11B7/13
主分类号
G11B7/00
代理机构
代理人
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地址
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