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Walter A. Van De Werken

📍 Littleton, CO: #1,041 of 1,939 inventorsTop 55%
🗺 Colorado: #24,093 of 40,980 inventorsTop 60%
Overall (All Time): #4,109,770 of 4,157,543Top 100%
1
Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4197494 Electromagnetic device with magnetic null means — 1980-04-08