Magnetic tape cassette having improved erasure preventing device

Details Magnetic tape cassette having improved erasure preventing device Magnetic tape cassette having improved erasure preventing device

1988-12-29

1992-02-11

Heinz, A. J.

Dynamic magnetic information storage or retrieval

Record medium

In container

360 60, G11B 2302

Patent

active

050879987

ABSTRACT:
A magnetic tape cassette of the .beta. cam or .beta. cam SP type having an improved mistake erasing preventing construction and improved dustproofing property. For the .beta. cam SP type cassette, a movable plug is provided in an insertion hole formed in the bottom face of the cassette housing and a snap-off tab is removed beforehand, while for the .beta. cam type cassette, an immovable plug is provided in the insertion hole and the snap-off tab is left intact.

REFERENCES:
patent: 4791504 (1988-12-01), Igarashi
patent: 4811150 (1989-03-01), Sciggs

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