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IPC Subgroup
H01J 23/05

having a cylindrical emissive surface, e.g. cathodes for magnetrons

Introduced: January 1980

Last revised: January 2006

Full Title

Details of transit-time tubes of the types covered by group > Electrodes; Magnetic control means; Screens > Cathodes > having a cylindrical emissive surface, e.g. cathodes for magnetrons

Classification Context

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