Audio-visual display device

Details Audio-visual display device Audio-visual display device

1972-07-27

1976-09-28

Burr, Edgar S.

Card, picture, or sign exhibiting

Calendars

40281, G09F 1310

Patent

active

039823440

ABSTRACT:
An audio-visual display device encased in two halves of an attache case, one half housing an illuminated window and a cassette tape recorder, the other half having provision for releasably holding a transparency magazine therein. The magazine includes a stiff backing member and a plurality of transparencies held together by a ring binder. Provision is made for permitting pivotal movement of the backing member away and toward the other half of the case when the backing member is releasably secured thereto to enable the folding under the backing member of transparencies that have been displayed.

REFERENCES:
patent: 2646636 (1953-07-01), Gandee
patent: 2962825 (1960-12-01), Bravo et al.
patent: 3253358 (1966-05-01), Wright

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