177 resultados para Underground Mine
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Mode of access: Internet.
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At head of title: ... Department of commerce. Herbert Hoover, secretary. Bureau of mines. Scott Turner, director.
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Mode of access: Internet.
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Mode of access: Internet.
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Bergingenieurdiploms--Preussische Bergakademie zu Clausthal i Harz. 1904.
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Mode of access: Internet.
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Title varies slightly.
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"Period of performance: September, l968- December, 1973."
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"DOE/ET-0100."
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Mode of access: Internet.
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Mode of access: Internet.
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"August 18, 1952."
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"January, 1953."
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"Issuance Date: May 24, 1965"--cover ; "December 1964"--title page
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Project SEDAN.