John Howard Dumbolton

Follow

Person

Williston, ND, US

People

Patents Grantslast 30 patents

Information Patent Grant
Process for increasing recovery of precious metals in an ore proces...
- Patent number 6,342,190
- Issue date Jan 29, 2002
- Brian Cannon Dumbolton
- C22 - METALLURGY FERROUS OR NON-FERROUS ALLOYS TREATMENT OF ALLOYS OR NON-FER...