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PCE
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DIFF Subgroup
H01J 17/24

Means for absorbing or adsorbing gas, e.g. by gettering

Introduced: September 1968

Full Title

Full titles differ between systems:

IPC:

Gas-filled discharge tubes with solid cathodes > Details > Means for obtaining or maintaining the desired pressure within the tube > Means for absorbing or adsorbing gas, e.g. by gettering

CPC:

Gas-filled discharge tubes with solid cathode (H01J25/00, H01J27/00, H01J31/00 - H01J41/00 take precedence; gas filled spark gaps H01T; Marx converters H02M7/26) > Details > Means for obtaining or maintaining the desired pressure within the tube > Means for absorbing or adsorbing gas, e.g. by gettering

No child classifications to compare. This is a leaf node in both IPC and CPC.