CM

Colin McGuinness

DU De Beers Uk: 1 patents #1 of 7Top 15%
Overall (2025): #417,883 of 469,880Top 90%
1
Patents 2025

Issued Patents 2025

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
12194504 Melee gemstone sorting Philip Harris, Peter Stanley Rose, Andrew John Portsmouth, Trevor Anthony Harries, David Fisher 2025-01-14