US PATENT SUBCLASS 377 / 55
.~ Particular input circuit

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377 /   HD   ELECTRICAL PULSE COUNTERS, PULSE DIVIDERS, OR SHIFT REGISTERS: CIRCUITS AND SYSTEMS

27  DF  SYSTEMS {21}
55.~ Particular input circuit

DEFINITION

Classification: 377/55

Particular input circuit:

(under subclass 27) Subject matter wherein the system is characterized by having an input circuit having special significance.

SEE OR SEARCH THIS CLASS, SUBCLASS:

60, for particular input circuits in charge transfer device-type counters.

70, for particular input circuits in shift registers, per se.

86, for particular input circuits in electromechanical counters.

111, for particular input circuits for counters in general.