WR

William A. Riddell

NI Nelson Industrial: 1 patents #48 of 105Top 50%
Overall (All Time): #3,915,052 of 4,157,543Top 95%
1
Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4969999 Cylindrical screen construction for a filter and method of producing the same — 1990-11-13