Guido Kustel

Guido Kustel is the author of books such as A Treatise On Concentration Of All Kinds Of Ores.

Books by Guido Kustel

A Treatise On Concentration Of All Kinds Of Ores

A Treatise On Concentration Of All Kinds Of Ores

Roasting Of Gold and Silver Ores

Roasting Of Gold and Silver Ores

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Roasting Of Gold and Silver Ores and The Extraction Of Their Respective Metals Without Quicksilver

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Nevada and California Processes Of Silver and Gold Extraction