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发明名称
Data recording and playback device
摘要
申请公布号
US2850720(A)
申请公布日期
1958.09.02
申请号
US19510255644
申请日期
1951.11.09
申请人
MONROE CALCULATING MACHINE COMPANY
发明人
OLIWA WALTER S.;JR. HOWARD M. FLEMING,
分类号
G06F3/023
主分类号
G06F3/023
代理机构
代理人
主权项
地址
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