-
公开(公告)号：US2009205A
公开(公告)日：1935-07-23
申请号：US1115235
申请日：1935-03-14
Applicant: GEN ELECTRIC
Inventor： TURTON RANDALL JOHN , LESLIE HARRIS NORMAN , WALTER RYDE JOHN
IPC: H01J61/54
CPC classification number: H01J61/545
Search Results
1
records
(took 0.011 seconds)
筛选
AND
AND
过滤
NOT
NOT
Scan to Join
