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发明名称
ELECTRICAL READOUT OF RECORDS UTILIZING A RECORD MEDIUM WITH CONDUCTIVE REFERENCE LINES AND A CONDUCTIVE MARKING LINE
摘要
申请公布号
US3491344(A)
申请公布日期
1970.01.20
申请号
USD3491344
申请日期
1967.05.15
申请人
DAVID FERBER
发明人
DAVID FERBER
分类号
G06K7/06;G06K11/00;(IPC1-7):G11B9/00;G06G7/18
主分类号
G06K7/06
代理机构
代理人
主权项
地址
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