(under subclass 391) Subject matter wherein each electrical circuits includes a generator delivering to its deflection means, a current or voltage waveform which periodically sweeps the cathode-ray beam across the target, and both electrical circuits are connected together to cause both waveforms to sweep the cathode-ray beam at the same time.
SEE OR SEARCH CLASS
342, Communications: Directive Radio Wave Systems and Devices (e.g., Radar, Radio Navigation),
142+, and 176+ for radar systems which utilize an indicator having a cathode-ray beam deflected onto a screen of a cathode-ray tube by means of synchronized horizontal vertical deflection systems.
348, Television,
805+, for cathode-ray tube color television systems and appropriate subclasses for noncolor television systems utilizing horizontal and vertical synchronized sweep circuits.
