-
公开(公告)号：US2757301A
公开(公告)日：1956-07-31
申请号：US30170652
申请日：1952-07-30
Applicant: WESTINGHOUSE ELECTRIC CORP
Inventor： JONES CHARLES H , CARPENTER CHESTER P
IPC: H01J31/20
CPC classification number: H01J31/20 , H01J31/201
Search Results
21
records
(took 0.012 seconds)
筛选
AND
AND
过滤
NOT
NOT
Scan to Join
