NM

Norman L. McDonald

📍 Salem, OR: #230 of 493 inventorsTop 50%
🗺 Oregon: #17,068 of 28,073 inventorsTop 65%
Overall (All Time): #3,988,862 of 4,157,543Top 100%
1
Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4564962 Energy efficient thermosyphoning spa heater system Kenneth B. Castleberry 1986-01-21