(under subclass 364) Subject matter wherein the cathode-ray tube has a fluorescent screen and the deflection means, when energized through the electrical circuit, causes the cathode-ray beam, when moving from the source to the screen, to be deflected at some time parallel to the cathode-ray screen.
(1) Note. The electrical circuit and the deflection means can periodically sweep the beam across the screen or just deflect the beam parallel to the screen.
SEE OR SEARCH THIS CLASS, SUBCLASS:
13.1, for plural ray beam deflection circuits which include a flat type cathode-ray tube.
SEE OR SEARCH CLASS
313, Electric Lamp and Discharge Devices, 422, for flat type cathode-ray tubes.
342, Communications: Directive Radio Wave Systems and Devices (e.g., Radar, Radio Navigation),
55, 138, 142+, and 176+ for radar systems and subclasses 350+ for directive systems which may utilize a flat cathode-ray type tube and a deflection system to move the cathode-ray beam parallel to the screen of the tube prior to the beam striking the screen.
