Magnetic disk cartridge

Dynamic magnetic information storage or retrieval – Record medium – In container

Reexamination Certificate

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Details

C360S135000, C360S099040, C360S099080

Reexamination Certificate

active

06876520

ABSTRACT:
A magnetic disk cartridge comprising a housing with space, and a magnetic disk rotatably held in the space of the housing. The magnetic disk includes a flexible magnetic recording medium, and at least one rigid ring mounted on the circumferential edge portion of the magnetic recording medium.

REFERENCES:
patent: 3805292 (1974-04-01), Hashiguchi et al.
patent: 4779160 (1988-10-01), Oishi
patent: 5249093 (1993-09-01), Umekida et al.
patent: 62-289982 (1987-12-01), None

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