RB

Roger R. Baum

AN Andrew: 1 patents #249 of 503Top 50%
Overall (All Time): #3,718,237 of 4,157,543Top 90%
1
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
5640079 Battery charger for portable rechargeable batteries Robert N. Nelson 1997-06-17