DR

Derrick C. Richfield

📍 Woodside, GB: #23 of 34 inventorsTop 70%
Overall (All Time): #3,963,544 of 4,157,543Top 100%
1
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Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
D298631 Retractable marine thrust motor — 1988-11-22