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Jefferson J. Springston

📍 Pasadena, MD: #72 of 201 inventorsTop 40%
🗺 Maryland: #13,387 of 35,612 inventorsTop 40%
Overall (All Time): #2,369,149 of 4,157,543Top 60%
2
Patents All Time

Issued Patents All Time

Showing 1–2 of 2 patents

Patent #TitleCo-InventorsDate
4302162 Water pumping device 1981-11-24
4247261 Water pumping device 1981-01-27