DC

David M. Calder

📍 Vancouver, CA: #2,049 of 5,070 inventorsTop 45%
Overall (All Time): #2,179,951 of 4,157,543Top 55%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
6890125 Adjustable screed system Wayne D. Calder 2005-05-10
5072474 Bridge construction Walter H. Dilger, Gamil Tadros, Paul Giannelia 1991-12-17