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公开(公告)号:US3551742A
公开(公告)日:1970-12-29
申请号:US3551742D
申请日:1969-03-06
Applicant: VALENTIN ANATOLIEVICH GRUZDEV , ALEXANDR ALEXEEVICH BAKEEV , BORIS VASILIEVICH SKVORTSOV
Inventor: GRUZDEV VALENTIN ANATOLIEVICH , BAKEEV ALEXANDR ALEXEEVICH , SKVORTSOV BORIS VASILIEVICH
IPC: H01J65/04 , H01J7/26 , H01J11/02
CPC classification number: H01J65/048 , Y02B20/22