Display or indicator element

Details Display or indicator element Display or indicator element

1979-03-22

1980-09-23

Mancene, Louis G.

Card, picture, or sign exhibiting

Changing exhibitor

Alphanumeric device

340764, 40450, G09F 937

Patent

active

042234646

ABSTRACT:
A display element is mounted on a base to rotate less than 180.degree. between two limiting positions and to create mutually contrasting effects in the two positions. A magnetizable element mounted on the base extends parallel to the axis of rotation and exerts rotational torque at each of its free ends on one of two permanent magnets mounted on the display element to rotate outside of the free ends.

REFERENCES:
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patent: 3537197 (1970-11-01), Smith
patent: 3624647 (1971-11-01), Smith
patent: 3624941 (1971-12-01), Chantry
patent: 3965668 (1976-06-01), Tomokazu
patent: 3975728 (1976-08-01), Winrow
patent: 3991496 (1976-11-01), Heiwig
patent: 3996680 (1976-12-01), Smith
patent: 4024532 (1977-05-01), Serwin
patent: 4040193 (1977-08-01), Matsuda

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