DR

Douglas D. Rife

HL Hunter Associates Laboratory: 1 patents #6 of 10Top 60%
📍 Sterling, VA: #239 of 444 inventorsTop 55%
🗺 Virginia: #18,729 of 34,511 inventorsTop 55%
Overall (All Time): #4,018,197 of 4,157,543Top 100%
1
Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4529308 Spectrophotometer apparatus and method including scale drift correction feature 1985-07-16