North, Oliver S. <br/><br/>
Mineral Processing Patents Issued During 1966 / 
by Oliver S. North 
 - Virginia :  Oliver D. North ,  1967 
 - 230 pages .:  tanle, illustrations .;  24 cm 
<br/><br/>Includes indexs 
<br/><br/><label>ISBN: </label>
<br/><br/><label>Subjects--Topical Terms: </label><br/>Mineral industries --Patents--Periodicals
<br/><br/><label>Dewey Class. No.: </label>669.0027  / NOR  1967