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发明名称
KOGAKUSHIKYOMITORISAISEISOCHI
摘要
申请公布号
JP2641682(B2)
申请公布日期
1997.08.20
申请号
JP19930114373
申请日期
1993.05.17
申请人
HITACHI SEISAKUSHO KK
发明人
SUGYAMA TOSHIO;SUENAGA HIDEO
分类号
G02B7/28;G11B7/09;(IPC1-7):G11B7/09
主分类号
G02B7/28
代理机构
代理人
主权项
地址
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