H01J2229/94 - CPC Classification Index

ClassID:

206191 ⎘

H01J2229/94 - CPC Classification

Classification description:

Details of cathode ray tubes or electron beam tubes Means for obtaining or maintaining the desired pressure within the tube

Recent Application in this class:

20240153739

ELECTRON BEAM WELDING SYSTEMS EMPLOYING A PLASMA CATHODE

20170213685

X-ray tube including hybrid electron emission source

20060033433

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