-
公开(公告)号：US2946915A
公开(公告)日：1960-07-26
申请号：US44475054
申请日：1954-07-21
Applicant: GEN ELECTRIC
Inventor： HAASE ALLEN P
IPC: H01J19/38
CPC classification number: H01J19/38 , H01J2893/0017
-
公开(公告)号：US2849639A
公开(公告)日：1958-08-26
申请号：US35450253
申请日：1953-05-12
Applicant: GEN ELECTRIC
Inventor： FEHR EDITH B , HAASE ALLEN P
IPC: H01J21/02
CPC classification number: H01J21/02
-
公开(公告)号：US2787723A
公开(公告)日：1957-04-02
申请号：US27299452
申请日：1952-02-23
Applicant: GEN ELECTRIC
Inventor： FEHR EDITH B , HAASE ALLEN P
IPC: H01J19/42
CPC classification number: H01J19/42 , H01J2893/0005
-
-
Search Results
3
records
(took 0.009 seconds)
筛选
AND
AND
过滤
NOT
NOT
Scan to Join
