DH

Douglas Haville

BE Bei Electronics: 1 patents #10 of 28Top 40%
Overall (All Time): #3,949,595 of 4,157,543Top 95%
1
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
4736141 Apparatus to control direction of rotation of a brushless motor as a function of power polarity — 1988-04-05