Tape cassette with flexible aperture closure

Details Tape cassette with flexible aperture closure Tape cassette with flexible aperture closure

1976-04-22

1977-10-11

Lucas, Jay P.

Dynamic magnetic information storage or retrieval

General recording or reproducing

Recording-or erasing-prevention

206816, 360 66, G11B 1504

Patent

active

040539350

ABSTRACT:
A tape cassette characterized by a bias changeover slot being disposed adjacent to an accidental erasure protective slot and wherein a blocking element for covering an opening of the accidental erasure protective slot is securable on the wall thereof which is disposed opposite the bias changeover slot.

REFERENCES:
patent: 3826489 (1974-07-01), Watkins, Jr.
patent: 3828363 (1974-08-01), Somers
patent: 3848265 (1974-11-01), Biery et al.
patent: 3900889 (1975-08-01), Broghammer
patent: 3950786 (1976-04-01), Shapley

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