DR

Delbert D. Randolph

📍 Hays, KS: #1 of 5 inventorsTop 20%
🗺 Kansas: #71 of 441 inventorsTop 20%
Overall (1994): #142,578 of 165,921Top 90%
1
Patents 1994

Issued Patents 1994

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
5284056 Hydrometer for determining coolant fluid antifreeze concentration Gerald E. Wagnon 1994-02-08