Patent search ap:("INT STANDARD ELECTRIC CORP") AND inv:"LE BOITEUX HENRI JEAN" Page 1

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发明授权
Electron discharge device 失效

公开(公告)号：US2226696A

公开(公告)日：1940-12-31

申请号：US21516838

申请日：1938-06-22

Applicant: INT STANDARD ELECTRIC CORP

Inventor： GABRIEL CLAVIER ANDRE , MARIE GLOESS PAUL FRANCOIS , LE BOITEUX HENRI JEAN

IPC: H01J1/13 , H01J43/02 , H01J43/08

CPC classification number: H01J43/02 , H01J1/13 , H01J43/08

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