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Alexander Daniel Elbers
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8333. Elbers, A. D. April 23. Drawings to Specification. Manures -A kiln is described for the slow cooling of blast-furnace slag so as to cause its disintegration into a powder applicable for use as a manure.
GB190108333D1901-04-231901-04-23Process of Treating Molten Blast Furnace Slag.
ExpiredGB190108333A
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