-
公开(公告)号：US1617161A
公开(公告)日：1927-02-08
申请号：US62481823
申请日：1923-03-13
Applicant: GEN ELECTRIC
Inventor： FRITZ KOREF , HANS HOFFMANN
IPC: H01K3/02
CPC classification number: H01K3/02 , Y10T29/49982
-
2.发明授权
公开(公告)号：US1658659A
公开(公告)日：1928-02-07
申请号：US66684123
申请日：1923-10-05
Applicant: GEN ELECTRIC
Inventor： FRANZ SKAUPY , HANS HOFFMANN , HELMUTH SCHMIDT
IPC: H01K1/12
CPC classification number: H01K1/12
-
Search Results
2
records
(took 0.008 seconds)
筛选
AND
AND
过滤
NOT
NOT
Scan to Join
