Seven bar module

Details Seven bar module Seven bar module

1986-04-30

1988-05-17

Friedman, Carl D.

Card, picture, or sign exhibiting

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Alphanumeric device

40446, 40450, 34081505, 34081524, 34081526, G09F 900

Patent

active

047441631

ABSTRACT:
Electromagnetically actuated rotatable display element uses low coercivity magnetic core drive through cores running parallel to the rotation axes and magnets on the element outside each end of the cores.

REFERENCES:
patent: 3096594 (1963-07-01), Skrobisch
patent: 3363347 (1968-01-01), Benson
patent: 3537197 (1970-11-01), Smith
patent: 3914723 (1975-10-01), Goodbar
patent: 3924528 (1975-12-01), Ludin
patent: 4117478 (1978-09-01), Skrobisch
patent: 4161832 (1979-07-01), Bergamini
patent: 4223464 (1980-09-01), Winrow
patent: 4233382 (1980-11-01), Edwards et al.
patent: 4308528 (1981-12-01), Hummel et al.
patent: 4459587 (1984-07-01), Leuthesser
patent: 4566210 (1986-01-01), Winrow et al.
patent: 4577427 (1986-03-01), Brown

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