-
公开(公告)号：US1887189A
公开(公告)日：1932-11-08
申请号：US24157827
申请日：1927-12-21
Applicant: ASEA AB
Inventor： VALDEMAR STERNER
IPC: H01H51/32
CPC classification number: H01H51/32
Search Results
1
records
(took 0.009 seconds)
筛选
AND
AND
过滤
NOT
NOT
Scan to Join
