-
公开(公告)号:US2914621A
公开(公告)日:1959-11-24
申请号:US68101857
申请日:1957-08-29
Applicant: INT STANDARD ELECTRIC CORP
IPC: G11B5/10
CPC classification number: G11B5/10
公开(公告)号:US2914621A
公开(公告)日:1959-11-24
申请号:US68101857
申请日:1957-08-29
Applicant: INT STANDARD ELECTRIC CORP
IPC: G11B5/10
CPC classification number: G11B5/10