Dynamic magnetic information storage or retrieval – Record medium – In container
Patent
1988-05-19
1990-07-31
Tupper, Robert S.
Dynamic magnetic information storage or retrieval
Record medium
In container
G11B 2308
Patent
active
049454404
ABSTRACT:
A tape cassette for video or audio units which consists of a housing having an upper half and a lower half, the upper half being composed mainly of an opaque material, the upper half having a transparent window portion on the upper wall thereof. A cover portion is laminated to the upper half, the cover portion being composed of a transparent material, the window portion consisting of a single layer of the transparent material, with an additional portion of the upper half formed of a double layer of the transparent material and the opaque material.
REFERENCES:
patent: 4553717 (1985-11-01), Takagi
patent: 4688128 (1987-08-01), Shiba et al.
Iwahashi Yuji
Sato Shin-ya
Urayama Kiyoshi
Sony Corporation
Tupper Robert S.
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