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发明名称
METHODS OF AND APPARATUS FOR REPRESENTING DIGITAL DATA BY ELECTRICAL SIGNALS
摘要
申请公布号
GB1518997(A)
申请公布日期
1978.07.26
申请号
GB19750028225
申请日期
1975.07.04
申请人
SIEMENS AG
发明人
分类号
G11B20/14;H04L25/32;(IPC1-7):H03K13/00;H04L3/00
主分类号
G11B20/14
代理机构
代理人
主权项
地址
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