DC

David William Conkin

📍 Chilliwack, CA: #26 of 97 inventorsTop 30%
Overall (All Time): #2,238,931 of 4,157,543Top 55%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
10478955 Tool for releasably retaining a railway spike 2019-11-19
6074176 Proportional product injection circuit with two diaphragm valves Burns L. Matkin 2000-06-13