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Douglas Keltz

EE Empire Abrasive Equipment: 1 patents #2 of 7Top 30%
📍 Levittown, PA: #269 of 461 inventorsTop 60%
🗺 Pennsylvania: #43,221 of 74,527 inventorsTop 60%
Overall (All Time): #4,015,286 of 4,157,543Top 100%
1
Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
4518145 Valve for regulating the pressurized flow of abrasives, in particular blast media Robert Heaton 1985-05-21