Mineral Exploration, Mining, And Processing Patents / by Oliver S. North - Arlington, Virginia : Oliver S. North , 1978 - 313 p.: chart, ill.; 23 cm

Includes indexes ( p.: 235 - 313 )

ISBN: RM 69.00

Subjects--Topical Terms: --Patents--Periodicals--Miniral Industries

Dewey Class. No.: 669.0027 NOR