Magnetic tape cassette

Details Magnetic tape cassette Magnetic tape cassette

1980-06-30

1982-09-14

Christian, Leonard D.

Winding, tensioning, or guiding

Strand tensioning device

Tortuous course

206389, 220 4B, G03B 104, G11B 1532, G11B 2304

Patent

active

043491669

ABSTRACT:
A magnetic tape cassette comprises an upper half casing and a lower half casing provided with a screw holder having a threaded hole at the corner of the lower half casing for connecting said upper half casing, wherein the thickness of the wall of the screw holder facing inside the casing is reduced and at least one rib having a level flush with the fitting surface of the lower half casing is formed at the inside portion of the screw holder.

REFERENCES:
patent: 3655145 (1972-04-01), Olsen
patent: 3834650 (1974-09-01), Hall
patent: 3857531 (1974-12-01), Jantzen
patent: 4227622 (1980-10-01), Okamura et al.

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