DH

Derek J. Hartwell

FI Finn: 4 patents #3 of 13Top 25%
Overall (All Time): #1,268,054 of 4,157,543Top 35%
4
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
D470512 Skid loader Christopher S. Miller, Jeffrey Stanley 2003-02-18
D470513 Skid loader Christopher S. Miller, Jeffrey Stanley 2003-02-18
D466910 Skid loader Christopher S. Miller, Jeffrey Stanley 2002-12-10
D463454 Skid loader Christopher S. Miller, Jeffrey Stanley 2002-09-24