(under subclass 128) Subject matter wherein the television signal is recorded on the record medium using a beam formed by a stream of electrons emitted from a cathode of an evacuated envelope.
SEE OR SEARCH CLASS
313, Electric Lamp and Discharge Devices,
364+, for cathode-ray tube, per se.
315, Electric Lamp and Discharge Devices: Systems,
1+, for cathode-ray tube circuits, per se.
324, Electricity: Measuring and Testing,
121+, for measuring, testing, or sensing using a cathode-ray tube. 345, Computer Graphics Processing, Operator Interface
Processing, and Selective Visual Display Systems,
10+, for CRT display.
347, Incrememtal Printing of Symbolic Information,
226+, for radiation marking using cathode-ray tube.
348, Television,
805+, for CRT video display.
355, Photocopying,
20, for projection printing and copying cameras with a cathode ray tube as a light source.
358, Facsimile,
485, for facsimile system having cathode-ray tube scanning.
430, Radiation Imagery Chemistry: Process, Composition, or Product Thereof, 23+, for process of producing cathode-ray tube.
