Electric indicator utilizing an oscillation source of a crystal

Details Electric indicator utilizing an oscillation source of a crystal Electric indicator utilizing an oscillation source of a crystal

1978-01-19

1983-04-19

Crosland, Donnie L.

Communications: electrical

Selective

Having indication or alarm

340 80, 340 81R, B60Q 134

Patent

active

043807542

ABSTRACT:
A turning indicator with high accuracy and reliability for its ON-OFF operational period, regardless of external conditions such as changes in ambient temperature and voltage of the battery, by means of the utilization of an oscillation source of a crystal clock used for automobiles.

REFERENCES:
patent: 3408625 (1968-10-01), Skinner
patent: 3858177 (1974-12-01), Kugelmann et al.
patent: 3914737 (1975-10-01), Sato
patent: 3940657 (1976-02-01), Kasiewicz et al.
patent: 3987424 (1976-10-01), Brouwer et al.
patent: 4105996 (1978-08-01), Shimizu

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