DM

Dale A. McCallum

📍 Spokane, WA: #582 of 1,134 inventorsTop 55%
🗺 Washington: #48,111 of 76,902 inventorsTop 65%
Overall (All Time): #4,123,876 of 4,157,543Top 100%
1
Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4233955 Fireplace and room heater Gerald L. McCallum 1980-11-18