US PATENT SUBCLASS 313 / 414
.~.~ With focusing and accelerating electrodes

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}
414.~.~ With focusing and accelerating electrodes

DEFINITION

Classification: 313/414

(under subclass 409) Subject matter including means for focusing and accelerating one or more of the electron beams.