Skip to content
PCE
Search Classifications
Search for IPC and CPC classification codes or keywords
CPC Subgroup
H01J 41/14

with ionisation by means of thermionic cathodes

Full Title

Discharge tubes for measuring pressure of introduced gas ; Discharge tubes for evacuation by diffusion of ions > Discharge tubes for evacuating by diffusion of ions, e.g. ion pumps, getter ion pumps > with ionisation by means of thermionic cathodes

1 direct subcode

Child Classifications

Navigate with arrow keys, Enter to open