HD

Harry W. Darr

📍 Kirkland, WA: #2,360 of 3,517 inventorsTop 70%
🗺 Washington: #48,111 of 76,902 inventorsTop 65%
Overall (All Time): #4,020,040 of 4,157,543Top 100%
1
Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4535754 Manufactured fuel assisted solar heat exchanger — 1985-08-20