Dynamic magnetic information storage or retrieval – Record medium – In container
Patent
1987-10-29
1988-09-06
Tupper, Robert S.
Dynamic magnetic information storage or retrieval
Record medium
In container
242199, G11B 2302
Patent
active
047697326
ABSTRACT:
A magnetic tape cassette has a housing with opposed surfaces and at least one passage extending through the housing and defining a cavity opening at apertures in such surfaces, and an indicating member movable within each passage and including a central positioning member in said cavity and opposed extensions directed from said positioning member into the apertures. The extensions are selectively actuable, as by a pencil point or the like, through the respective aperture for displacing the positioning member past a detent in the cavity from one to another of two externally detectable positions which correspond to respective states of the cassette.
REFERENCES:
patent: 3721772 (1973-03-01), Miura et al.
patent: 4012011 (1977-03-01), Saito
patent: 4041537 (1977-08-01), Kishi
Eslinger Lewis H.
Sniezek Andrew L.
Tupper Robert S.
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