WG

William Groothius

📍 Calgary, CA: #2,769 of 5,407 inventorsTop 55%
Overall (All Time): #4,086,044 of 4,157,543Top 100%
1
Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4257289 Portable pipe end bevelling tool — 1981-03-24