DH

Derrick Hardy

📍 Lowdham, GB: #2 of 4 inventorsTop 50%
Overall (All Time): #3,978,319 of 4,157,543Top 100%
1
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Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4679768 Valve — 1987-07-14