Patent search ap:("PHILIPS CORP") AND inv:"JAN OSKAM HENDRIK" Page 1

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发明授权
Electric discharge device having a low impedance at acoustic frequencies 失效
Title translation: 在声频频率下具有低阻抗的放电装置

公开(公告)号：US2988664A

公开(公告)日：1961-06-13

申请号：US82157859

申请日：1959-06-19

Applicant: PHILIPS CORP

Inventor： MARIE AHSMANN GERARDUS JOSEPHU , JAN OSKAM HENDRIK

IPC: H01J17/40 , H01J61/16

CPC classification number: H01J17/40 , H01J61/16

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