GM

Gerald L. McCallum

📍 Spokane, WA: #391 of 1,134 inventorsTop 35%
🗺 Washington: #35,300 of 76,902 inventorsTop 50%
Overall (All Time): #2,244,847 of 4,157,543Top 55%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
6164865 Interlocking barrier system with multiple securing mechanisms — 2000-12-26
4233955 Fireplace and room heater Dale A. McCallum 1980-11-18