US PATENT SUBCLASS 361 / 501
.~ Coulometer (i.e., electrochemical timer)

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361 /   HD   ELECTRICITY: ELECTRICAL SYSTEMS AND DEVICES

500  DF  ELECTROLYTIC SYSTEMS OR DEVICES {7}
501.~ Coulometer (i.e., electrochemical timer)

DEFINITION

Classification: 361/501

Coulometer (i.e., electrochemical timer):

(under subclass 500) Subject matter including an electrolytic cell for measuring a quantity of electricity by the chemical action produced.

SEE OR SEARCH CLASS

324, Electricity: Measuring and Testing,

76.11+, for electricity meter, particularly subclass 94 for electrolytic device.