NG

Norman J. Griffiths

ND National Research Development: 1 patents #307 of 1,071Top 30%
Overall (All Time): #2,348,062 of 4,157,543Top 60%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
4587772 Dispenser for a jet of liquid bearing particulate abrasive material — 1986-05-13
4449332 Dispenser for a jet of liquid bearing particulate abrasive material — 1984-05-22