-
公开(公告)号：US2040530A
公开(公告)日：1936-05-12
申请号：US69660633
申请日：1933-11-04
Applicant: RCA CORP
Inventor： PIPPER ARNOLD L
IPC: H01J19/30
CPC classification number: H01J19/30 , H01J2893/002
Search Results
1
records
(took 0.024 seconds)
筛选
AND
AND
过滤
NOT
NOT
Scan to Join
