Invention Grant
- Patent Title: Magnetic recording medium
- Patent Title (中): 磁记录介质
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Application No.: US24133762Application Date: 1962-11-30
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Publication No.: US3219353APublication Date: 1965-11-23
- Inventor: PRENTKY PETER I
- Applicant: IBM
- Assignee: Ibm
- Current Assignee: Ibm
- Priority: US24133762 1962-11-30
- Main IPC: G11B5/66
- IPC: G11B5/66 ; G11B5/73 ; H01F10/06
Information query
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