DG

David Glover

SM Spears Manufacturing: 1 patents #2 of 4Top 50%
📍 Agua Dulce, CA: #3 of 7 inventorsTop 45%
🗺 California: #26,007 of 66,859 inventorsTop 40%
Overall (2021): #485,011 of 548,734Top 90%
1
Patents 2021

Issued Patents 2021

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
11149874 Valve operator assembly Wayne Spears, Douglas Swingley 2021-10-19