Patent search ap:("BELL TELEPHONE LABOR INC") AND inv:"LUCKNER LEO B" Page 1

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发明授权
Electron discharge device of the cavity resonator type 失效
Title translation: 腔谐振器型电子放电器件

公开(公告)号：US2802137A

公开(公告)日：1957-08-06

申请号：US43796054

申请日：1954-06-21

Applicant: BELL TELEPHONE LABOR INC

Inventor： LUCKNER LEO B , REED EUGENE D

IPC: H01J25/24

CPC classification number: H01J25/24

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