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PCE
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Search for IPC and CPC classification codes or keywords
DIFF Subgroup
H01J 29/50

two or more guns in a single vacuum space, e.g. for plural-ray tube (H01J29/51 takes precedence)

Introduced: September 1968

Title

Titles differ between systems:

IPC: two or more guns being arranged in a single vacuum space, e.g. for plural-ray tubes

CPC: two or more guns in a single vacuum space, e.g. for plural-ray tube (H01J29/51 takes precedence)

Full Title

Full titles differ between systems:

IPC:

Details of cathode-ray tubes or of electron-beam tubes of the types covered by group > Arrangements of electrodes and associated parts for generating or controlling the ray or beam, e.g. electron-optical arrangement > Electron guns > two or more guns being arranged in a single vacuum space, e.g. for plural-ray tubes

CPC:

Details of cathode-ray tubes or of electron-beam tubes of the types covered by group H01J31/00 > Arrangements of electrodes and associated parts for generating or controlling the ray or beam, e.g. electron-optical arrangement > Electron guns > two or more guns in a single vacuum space, e.g. for plural-ray tube (H01J29/51 takes precedence)

Of 2 combined children, 0 exist in both systems.

2 codes are CPC-only extensions.

Child Classifications

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