Leonard J. Heavin

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Olympia, WA, US

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Patents Grantslast 30 patents

Information Patent Grant
Process for blending coal with water immiscible liquid
- Patent number 4,356,078
- Issue date Oct 26, 1982
- The Pittsburg & Midway Coal Mining Co.
- Leonard J. Heavin
- C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...