US PATENT SUBCLASS 315 / 15
.~.~ Three or more stages

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

1  DF  CATHODE RAY TUBE CIRCUITS {11}
14  DF  .~ Plural concentrating, accelerating, and/or de-accelerating stages {2}
15.~.~ Three or more stages {1}
16  DF  .~.~.~> Intermediate stage at lower potential

DEFINITION

Classification: 315/15

(under subclass 14) Subject matter, wherein the cathode-ray tube is provided with three or more means for concentrating, accelerating, and/or de-accelerating the cathode-ray.