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


Current as of: June, 1999
Click HD for Main Headings
Click for All Classes

Internet Version by PATENTEC © 1999      Terms of Use



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.