Patent search ap:("MACHLETT LAB INC") AND inv:"NEVINS WILLIAM H" Page 1

1.

发明授权
Cathode structure having thermal expansion compensating means 失效
Title translation: 具有热膨胀补偿方式的阴极结构

公开(公告)号：US3551724A

公开(公告)日：1970-12-29

申请号：US3551724D

申请日：1967-06-16

Applicant: MACHLETT LAB INC

Inventor： NEVINS WILLIAM H

IPC: H01J1/18 , H01J1/96 , H01J19/50 , H01K1/18

CPC classification number: H01J1/18

Patent Agency Ranking