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发明名称
VERIFICATION OF MAGNETIC RECORDING
摘要
申请公布号
US3535687(A)
申请公布日期
1970.10.20
申请号
USD3535687
申请日期
1968.12.23
申请人
BELL TELEPHONE LAB. INC.
发明人
NOEL A. LEIFER
分类号
G06F11/16;G11B5/00;(IPC1-7):G11B5/06;G11B5/46;G11B27/36
主分类号
G06F11/16
代理机构
代理人
主权项
地址
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