US PATENT SUBCLASS 313 / 479
.~.~ Coating or shielding

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

364  DF  CATHODE RAY TUBE {11}
477 R  DF  .~ Envelope {6}
479.~.~ Coating or shielding

DEFINITION

Classification: 313/479

(under subclass 477) Subject matter including means for protecting the envelope or preventing radiation from entering or leaving the envelope.