KH

Kenneth J. Harder

📍 Engelenbeemden, MS: #23 of 41 inventorsTop 60%
🗺 Mississippi: #1,935 of 4,257 inventorsTop 50%
Overall (All Time): #4,065,599 of 4,157,543Top 100%
1
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Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4316612 Educational algebra board game — 1982-02-23