Search results for "Anthracite coal"

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Untersuchungen über die Bildung von Antraciten im Donezbassin: diplomarbeit

1902

Anthrazitkohle:TECHNOLOGY::Chemical engineering::Other chemical engineering [Research Subject Categories]DiplomdarbiAntracīta ogles - DonbassSteinkohle ChemieOgles antracītaAnthracite coal
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