US PATENT SUBCLASS 434 / 3
.~.~ Cathode ray screen display simulated by light means (e.g., light spot projected onto screen, etc.)

Current as of: June, 1999
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434 /   HD   EDUCATION AND DEMONSTRATION

1  DF  DETECTION OR RANGE DETERMINATION OF DISTANT OBJECT BY APPARATUS USING SENSOR OF ELECTROMAGNETIC OR SOUND ENERGY {2}
2  DF  .~ Radar {3}
3.~.~ Cathode ray screen display simulated by light means (e.g., light spot projected onto screen, etc.)

DEFINITION

Classification: 434/3

Cathode ray screen display simulated by light means (e.g.., light spot projected onto screen, etc.):

(under subclass 2) Subject matter wherein light is used to provide a display that looks like a blip or sweeping line seen on the face of a cathode ray tube.