Anderson, Donna L. <br/><br/>
Underground test results of a laser-based tram control system for a continuous miner / 
by Donna Lynne Anderson. 
 - Washington, D.C. :  U.S. Dept. of the Interior, Bureau of Mines,  1992. 
 - 10 p. :  Ill. ;  28 cm. 
 - Report of investigations ;  9440 .
 - Report of investigations (United States. Bureau of Mines) ;  9440. .
<br/><br/> Supt. of Docs. no.: I 28.23:9440. 
<br/><br/>Includes bibliographical references (p. 10). 
<br/><br/><label>LCCN: </label>92005712  
<br/><br/><label>Subjects--Topical Terms: </label><br/>Mining machinery--Automatic control.<br/>Mine railroads--Automatic control.<br/>Lasers in navigation.
<br/><br/><label>LC Class. No.: </label>TN23  TN345  / .U43 
<br/><br/><label>Dewey Class. No.: </label>622 s  622