Dynamic magnetic information storage or retrieval – Record medium – In container
Reexamination Certificate
2005-04-05
2005-04-05
Tupper, Robert S. (Department: 2652)
Dynamic magnetic information storage or retrieval
Record medium
In container
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
Fuji Photo Film Co. , Ltd.
Tupper Robert S.
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