US PATENT SUBCLASS 377 / 16
.~ Determining machine or apparatus operating time or monitoring machine, apparatus or operation

Current as of: June, 1999
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377 /   HD   ELECTRICAL PULSE COUNTERS, PULSE DIVIDERS, OR SHIFT REGISTERS: CIRCUITS AND SYSTEMS

1  DF  APPLICATIONS {11}
16.~ Determining machine or apparatus operating time or monitoring machine, apparatus or operation

DEFINITION

Classification: 377/16

Determining machine or apparatus operating time or monitoring machine apparatus or operation:

(under subclass 1) Subject matter comprising counting means for determining the time which a machine or apparatus operates or for identifying or measuring some parameter relative to the operation of a machine or apparatus.

SEE OR SEARCH THIS CLASS, SUBCLASS:

15, for counting the number of times a machine or apparatus operates.

38, for plug-in counters.