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Information Technology
Class Information
Number:
368/48
Name:
Horology: time measuring systems or devices
>
Plural timepiece system or system device (e.g., primary or secondary clocks)
> With auxiliary power source
Description:
Subject matter wherein the main power source for the system is replaced by an emergency power source in event of main power source failure.
Patents under this class:
Patent Number
Title Of Patent
Date Issued
4446491
Ultrahigh resolution photocomposition system employing electronic character generation from magnetically stored data
May. 1, 1984
4419017
Electronic clock
Dec. 6, 1983
4395135
Optional alarm and battery backup system for a talking timepiece
Jul. 26, 1983
4173862
Booster circuit for electronic timepiece
Nov. 13, 1979
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