US PATENT SUBCLASS 708 / 849
.~.~.~ Cathode-ray tube

Current as of: June, 1999
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708 /   HD   ELECTRICAL COMPUTERS: ARITHMETIC PROCESSING AND CALCULATING

800  DF  ELECTRICAL ANALOG CALCULATING COMPUTER {1}
801  DF  .~ Particular function performed {15}
845  DF  .~.~ Function generation {7}
849.~.~.~ Cathode-ray tube

DEFINITION

Classification: 708/849

Cathode-ray tube:

(under subclass 845) Subject matter wherein sensing a pattern within or external to the envelope of a cathode-ray tube produces a function signal.

SEE OR SEARCH THIS CLASS, SUBCLASS:

540, for a cathode ray tube used in digital arithmetical operation.

SEE OR SEARCH CLASS

340, Communications: Electrical,

324, for multiple variation cathode ray display electrical communication systems.