-
公开(公告)号：US2158450A
公开(公告)日：1939-05-16
申请号：US16744537
申请日：1937-10-05
Applicant: BAIRD TELEVISION LTD
Inventor： WILLIAM WILLANS PETER
IPC: H01J31/28
CPC classification number: H01J31/28
Search Results
1
records
(took 0.131 seconds)
筛选
AND
AND
过滤
NOT
NOT
Scan to Join
