DC

Douglas Cassidy

📍 Calgary, CA: #2,769 of 5,407 inventorsTop 55%
Overall (All Time): #3,733,856 of 4,157,543Top 90%
1
Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
5482084 Eavestrough downspout Ronald S. Kossowan 1996-01-09