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1.发明授权Magnetic tape tester utilizing a detector head,d.c. biased to oppose the test magnetization on the tape 失效使用检测器头的磁带测试仪，D.C。 倾向于在胶带上进行测试磁化
公开(公告)号：US3535622A
公开(公告)日：1970-10-20
申请号：US3535622D
申请日：1968-10-16
Applicant: IBM
Inventor： CANNON MAXWELL R , TAKAHASHI KUNIOMI
IPC: G01R33/12
CPC classification number: G01R33/1207
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