US PATENT SUBCLASS 315 / 13.11
.~.~ Storage tubes


Current as of: June, 1999
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315 /   HD   ELECTRIC LAMP AND DISCHARGE DEVICES: SYSTEMS

1  DF  CATHODE RAY TUBE CIRCUITS {11}
13.1  DF  .~ Plural ray-type tube {1}
13.11.~.~ Storage tubes


DEFINITION

Classification: 315/13.11

Storage tubes:

(under subclass 13.1) Subject matter wherein changeable information is stored in the form of charged or uncharged areas of the screen of the cathode-ray tube.