Patent search ap:("RCA CORP") AND inv:"MARIE MOUBIS GERARD CHARLES AN" Page 1

1.

发明授权
Electric discharge tube 失效

公开(公告)号：US2225479A

公开(公告)日：1940-12-17

申请号：US23336238

申请日：1938-10-05

Applicant: RCA CORP

Inventor： HENDRIK JONKER JOHAN LODEWIJK , MARIE MOUBIS GERARD CHARLES AN

IPC: H01J31/14

CPC classification number: H01J31/14

Patent Agency Ranking