Patent search ap:("ASEA AB") AND inv:"BACKMAN OWE" Page 1

1.

发明授权
Device for converting a variable direct voltage to a substantially constant alternating voltage 失效
Title translation: 将可变直接电压转换为大量恒定电压的装置

公开(公告)号：US3522517A

公开(公告)日：1970-08-04

申请号：US3522517D

申请日：1968-04-17

Applicant: ASEA AB

Inventor： BACKMAN OWE , WIDAKOWICH MARIUS

IPC: H02M7/48 , H02M1/08

CPC classification number: H02M7/48

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