DO

David R. Opsal

📍 Saskatoon, CA: #485 of 909 inventorsTop 55%
Overall (All Time): #3,681,075 of 4,157,543Top 90%
1
Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
5738591 Queuing system — 1998-04-14