Changeable character sign structure

Details Changeable character sign structure Changeable character sign structure

1978-07-14

1979-08-21

Mancene, Louis G.

Card, picture, or sign exhibiting

Changing exhibitor

Alphanumeric device

40488, G09F 932

Patent

active

041648242

ABSTRACT:
Sign having self-storing characters which are quickly changeable. The face of the sign has a patterned array of openings juxtaposed against a contrasting background. The background may be supplied by color contrast and/or by illumination.

REFERENCES:
patent: 1357457 (1920-11-01), Jorgensen
patent: 1755315 (1930-04-01), Chubb
patent: 3096594 (1963-07-01), Skrobisch
patent: 3362093 (1968-01-01), Joselevich
patent: 3792540 (1974-02-01), Watanabe et al.
patent: 4024532 (1977-05-01), Sherwin
patent: 4063377 (1977-12-01), Hukill

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