HJ

Harrison W. Sigworth, Jr.

📍 Orinda, CA: #5 of 25 inventorsTop 20%
🗺 California: #1,105 of 6,198 inventorsTop 20%
Overall (1982): #60,544 of 81,411Top 75%
1
Patents 1982

Issued Patents 1982

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4338991 Combined solar heating and passive cooling apparatus — 1982-07-13