H01K1/52 - CPC Classification Index

ClassID:

206931 ⎘

H01K1/52 - CPC Classification

Classification description:

Details Means for obtaining or maintaining the desired pressure within the vessel

Sub-classes:

H01K1/54 » Means for absorbing or absorbing gas, or for preventing or removing efflorescence, e.g. by gettering 2

Recent Application in this class:

20130112896

PLATINUM-BASED INFRARED LIGHT SOURCE FOR GAS DETECTION

20090045742

Incandescent lamp having an illuminant that contains a high-temperature resistant metal compound

20080218079

Cracking of Halogenated Hydrocarbon in Bulb of a Halogen Lamp by External Heat Source