SW

Sprague H. Watkins

📍 Vancouver, WA: #1,061 of 1,812 inventorsTop 60%
🗺 Washington: #48,111 of 76,902 inventorsTop 65%
Overall (All Time): #3,647,568 of 4,157,543Top 90%
1
Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
5896189 Device and method for selective photographic flashing during photographic enlarging — 1999-04-20