US PATENT SUBCLASS 313 / 416
.~.~.~ Including non-planar elements

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  DF  .~.~ With screen {1}
416.~.~.~ Including non-planar elements

DEFINITION

Classification: 313/416

(under subclass 415) Subject matter including elements having subelements in more than one plane which geometrically discriminate between or among electron beams.