CR

Clive J. Roberts

ID Irwin Research And Development: 1 patents #4 of 6Top 70%
Overall (All Time): #3,980,285 of 4,157,543Top 100%
1
Patents All Time

Issued Patents All Time

Patent #TitleCo-InventorsDate
4687144 Apparatus for comminuting waste materials Jere F. Irwin, John R. Doornink 1987-08-18