H01J19/70 - CPC Classification Index

ClassID:

204829 ⎘

H01J19/70 - CPC Classification

Classification description:

Details of vacuum tubes of the types covered by group Means for obtaining or maintaining the vacuum, e.g. by gettering

Sub-classes:

H01J19/72 » Tubulations therefor, e.g. for exhausting; Closures therefor 0

Recent Application in this class:

20160211107

Vacuum tube

20160211106

Vacuum tube

20120081097

High voltage high current regulator

20060164009

Vacuum device having non-evaporable getter component with increased exposed surface area