A Short-range locator system for detecting trapped miners / 
by William E. Webb ... [et al.]. 
 - [Avondale, Md.] :  U.S. Dept. of the Interior, Bureau of Mines,  1984. 
 - ii, 22 p. :  ill. ;  28 cm. 
 - Report of investigations ;  8844 .
 - Report of investigations (United States. Bureau of Mines) ;  8844. .
<br/><br/>Bibliography: p. 18-22. 
<br/><br/><label>LCCN: </label>83600306  
<br/><br/><label>Subjects--Topical Terms: </label><br/>Mine rescue work--Equipment and supplies.<br/>Radio--Transmitters and transmission.<br/>Mine communication systems.
<br/><br/><label>LC Class. No.: </label>TN23  TN297  / .U43 no. 8844 
<br/><br/><label>Dewey Class. No.: </label>622 s  622/.8 
<br/><br/><label>Gov. Doc. Class. No.: </label>I 28.23:8844