DH

Dwight Hayes

TU The Unicover: 1 patents #8 of 14Top 60%
Overall (All Time): #3,818,795 of 4,157,543Top 95%
1
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
5191972 Storage and display device for coins and the like James A. Helzer, David P. Hanefeld 1993-03-09