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IPC Subgroup
H01J 31/08

having a screen on or from which an image or pattern is formed, picked-up, converted, or stored

Introduced: September 1968

Last revised: January 2006

Full Title

Cathode-ray tubes; Electron-beam tubes > having a screen on or from which an image or pattern is formed, picked-up, converted, or stored

Classification Context

Section:
ELECTRICITY
Class:
ELECTRIC ELEMENTS
Subclass:
ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS

6 direct subcodes

Child Classifications

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  • H01J 31/49 Pick-up tubes adapted for an input of electromagnetic radiation other than visible light and having an electric output, e.g. for an input of X-rays, for an input of infrared radiation
  • H01J 31/495 Pick-up tubes adapted for an input of sonic, ultrasonic or mechanical vibrations and having an electric output