RD

Robert E. Derby

AN Andis: 2 patents #22 of 39Top 60%
Overall (All Time): #2,183,871 of 4,157,543Top 55%
2
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
6948248 Hair trimmer Matthew L. Andis, Richard J. Tringali 2005-09-27
6112414 Rechargeable hair clipper assembly Matthew L. Andis, John M. Piwaron 2000-09-05