-
公开(公告)号：US3099768A
公开(公告)日：1963-07-30
申请号：US80185259
申请日：1959-03-25
Applicant: GEN ELECTRIC
Inventor： MELVIN ANDERSON JOHN
IPC: H01J25/00
CPC classification number: H01J25/005
Search Results
1
records
(took 0.009 seconds)
筛选
AND
AND
过滤
NOT
NOT
Scan to Join
