DS

David Spencer

📍 Manton, MI: #4 of 9 inventorsTop 45%
🗺 Michigan: #35,034 of 86,293 inventorsTop 45%
Overall (All Time): #1,737,672 of 4,157,543Top 45%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
12419573 Mouth-opening measuring device 2025-09-23
6015248 Wood corer device Terrence Charles Elliott, Gary John Nevill, Ian Kenneth Byrne, Anthony Mason Adams, M Lyle Courtney 2000-01-18