Audio-visual display device

Details Audio-visual display device Audio-visual display device

1979-02-02

1980-12-23

Pitrelli, John F.

Card, picture, or sign exhibiting

Display device with gas or liquid movement

With dispersion of fluid medium

40430, 40439, 40455, 428 13, G09F 1902

Patent

active

042402182

ABSTRACT:
Audio-visual display device is enclosed terrarium containing living plants of normal size. One or more models on small scale of living creatures are located in the terrarium and are powered to move. The small-scale models of the creatures have the effect of making the plants look larger. A pump to produce simulated rain or a music device to produce music are optional additions to enhance the effect.

REFERENCES:
patent: 327673 (1885-10-01), Gaillard
patent: 1727700 (1929-09-01), Dickson
patent: 2751880 (1956-06-01), Markowski
patent: 2922253 (1960-01-01), Carter
patent: 3905140 (1975-09-01), Damiano
patent: 3927482 (1975-12-01), Marcus
patent: 3975845 (1976-08-01), Mellard
patent: 4117805 (1978-10-01), Ward
patent: 4180932 (1980-01-01), Millard

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