DH

Donald Heelis

📍 Mississauga, CA: #2,015 of 3,799 inventorsTop 55%
Overall (All Time): #3,872,127 of 4,157,543Top 95%
1
Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
5000193 Medical swab device Mark Semenuk, Robert Zawydiwski 1991-03-19