-
公开(公告)号：US2060678A
公开(公告)日：1936-11-10
申请号：US64490132
申请日：1932-11-29
Applicant: GEN ELECTRIC
Inventor： PAUL LENZ
IPC: H01J1/13
CPC classification number: H01J1/135
-
公开(公告)号：US1943126A
公开(公告)日：1934-01-09
申请号：US60900532
申请日：1932-05-03
Applicant: GEN ELECTRIC
Inventor： PAUL LENZ
IPC: H01J1/13
CPC classification number: H01J1/135
-
Search Results
2
records
(took 0.01 seconds)
筛选
AND
AND
过滤
NOT
NOT
Scan to Join
