Patent search ap:("SPECTRA MAT INC") AND inv:"REAVES RONALD T" Page 1

1.

发明授权
Directly heated dispenser cathode structure and the method of fabricating same 失效
Title translation: 直接加热分配器阴极结构及其制造方法

公开(公告)号：US3514661A

公开(公告)日：1970-05-26

申请号：US3514661D

申请日：1968-07-05

Applicant: SPECTRA MAT INC

Inventor： REAVES RONALD T

IPC: H01J1/15 , H01J1/28 , H01J9/04 , H01J1/14 , H01J19/06

CPC classification number: H01J9/047 , H01J1/15 , H01J1/28 , Y10T428/12333 , Y10T428/12451 , Y10T428/31692

Patent Agency Ranking