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Hot milling of rock--drill bits at mines of Vinegar Hill Zinc Co., Platteville, Wis.

Bibliographic Details
Corporate Author:	United States. Bureau of Mines
Format:	Government Document eBook
Language:	English
Published:	[Washington] : [s.n.], 1936.
Subjects:	Mineral industries. Iron. Tools. Wisconsin.
Online Access:	Electronic resource (PDF)

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