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公开(公告)号:US3209327A
公开(公告)日:1965-09-28
申请号:US1028260
申请日:1960-02-23
Applicant: IBM
Inventor: BRANDT WILLIAM E
IPC: H03M13/19
CPC classification number: H03M13/19
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公开(公告)号:US3131383A
公开(公告)日:1964-04-28
申请号:US732460
申请日:1960-02-08
Applicant: IBM
Inventor: BRANDT WILLIAM E
IPC: G11B20/16
CPC classification number: G11B20/16
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公开(公告)号:US3119984A
公开(公告)日:1964-01-28
申请号:US7763260
申请日:1960-12-22
Applicant: IBM
Inventor: BRANDT WILLIAM E , MARGOPOULOS WILLIAM P
IPC: G11C27/02
CPC classification number: G11C27/026
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