US PATENT SUBCLASS 377 / 35
.~.~ Excess three code

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

27  DF  SYSTEMS {21}
33  DF  .~ Using particular code or particular counting sequence {3}
35.~.~ Excess three code

DEFINITION

Classification: 377/35

Excess three code:

(under subclass 33) Subject matter where the code for each number is the same as in binary coded decimal except 3 is added to each decimal before encoding it into binary.