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发明名称
摘要
申请公布号
JPH0255866(B2)
申请公布日期
1990.11.28
申请号
JP19800121055
申请日期
1980.09.03
申请人
HITACHI LTD
发明人
ITO SHIGEYUKI;WATAYA YOSHIZUMI
分类号
G11B20/02;G11B5/02;G11B20/06;H03G3/34;H04N5/93;H04N9/802
主分类号
G11B20/02
代理机构
代理人
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地址
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