-
公开(公告)号：US2177424A
公开(公告)日：1939-10-24
申请号：US1245235
申请日：1935-03-22
Applicant: ASEA AB
Inventor： TORBJORN YTTERBERG ARLE
IPC: G05F1/00
CPC classification number: G05F1/00
Search Results
1
records
(took 0.032 seconds)
筛选
AND
AND
过滤
NOT
NOT
Scan to Join
