-
公开(公告)号：US2473413A
公开(公告)日：1949-06-14
申请号：US76614547
申请日：1947-08-05
Applicant: RALPH CORTESE
Inventor： RALPH CORTESE
IPC: H01J17/06
CPC classification number: H01J17/066 , H01J2893/0066
-
公开(公告)号：US2441260A
公开(公告)日：1948-05-11
申请号：US59422645
申请日：1945-05-17
Applicant: RALPH CORTESE
Inventor： RALPH CORTESE
IPC: H01J17/06
CPC classification number: H01J17/066 , H01J2893/0066
-
Search Results
2
records
(took 0.018 seconds)
筛选
AND
AND
过滤
NOT
NOT
Scan to Join
