US PATENT SUBCLASS 313 / 415
.~.~ With screen

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

364  DF  CATHODE RAY TUBE {11}
409  DF  .~ Plural beam generating or control {7}
415.~.~ With screen {1}
416  DF  .~.~.~> Including non-planar elements

DEFINITION

Classification: 313/415

(under subclass 409) Subject matter including a fluorescent or phosphorescent screen.