Card – picture – or sign exhibiting – Changing exhibitor – Alphanumeric device
Patent
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.
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Contreras Wenceslao J.
Ferranti-Packard Limited
Mancene Louis G.
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