Mobile visual signalling device

Details Mobile visual signalling device Mobile visual signalling device

1977-11-18

1979-12-04

Kinsey, Russell R.

Card, picture, or sign exhibiting

Changing exhibitor

With electric circuit control

40591, G09F 2104

Patent

active

041764838

ABSTRACT:
The proposed invention is directed to an electrically driven and electrically controlled film viewing device including a viewing screen and a film transport means including a double reel assembly and further including means to drive the reels and also incorporating electrical control means for the drive means so as to selectively position the film with respect to the viewing screen.

REFERENCES:
patent: 2146834 (1939-02-01), McCain
patent: 2635373 (1953-04-01), Barkau
patent: 3678282 (1972-07-01), Johnson
patent: 3983651 (1976-10-01), Dickey

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