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摘要
申请公布号
BE742430(A)
申请公布日期
1970.05.04
申请号
BED742430
申请日期
1969.11.28
申请人
发明人
分类号
G11B20/14;H03K5/135;H03L7/085;H03L7/10
主分类号
G11B20/14
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