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1.
Mineral Exploration, Mining, And Processing Patents / by Oliver S. North

by [North, Oliver S.].

Material type: Text Text; Format: print ; Literary form: Not fiction Publisher: Arlington, Virginia : Oliver S. North , 1978Availability: Items available for loan: PPMCall number: 669.0027 NOR 1978 (1).

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2.
Mineral Processing Patents Issued During 1966 / by Oliver S. North

by North, Oliver S [author].

Material type: Text Text; Format: print ; Literary form: Not fiction Publisher: Virginia : Oliver D. North , 1967Availability: Items available for loan: PPMCall number: 669.0027 NOR 1967 (1).

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