-
公开(公告)号：US2794140A
公开(公告)日：1957-05-28
申请号：US39341653
申请日：1953-11-20
Applicant: RCA CORP
Inventor： WEAVER JAMES L , POLKOSKY JOSEPH J
IPC: H01J40/16
CPC classification number: H01J40/16
Search Results
1
records
(took 0.019 seconds)
筛选
AND
AND
过滤
NOT
NOT
Scan to Join
