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Number:
968/855
Name:
Horology
>
Apparatus for measuring unknown time intervals by means not provided for in subclass 817 to subclass 844 [g04f 13/00]
> Using electrochemical means [g04f 13/04]
Description:
Patents under this class:
Patent Number
Title Of Patent
Date Issued
4804275
Indicator device for indicating the time integral of a monitored parameter
Feb. 14, 1989
4364670
Electrophoretic elapsed time indicator
Dec. 21, 1982
4103296
Coulometric electrolytic timing device with coaxially aligned electrodes
Jul. 25, 1978
4084511
Electrolytic timing element
Apr. 18, 1978
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