Cunningham, John E <br/><br/>
Security electronics 

 - 
 - England  W Foulsham  1970 
 - 159p.   
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<br/><br/><label>ISBN: </label>
<br/><br/><label>ISSN: </label>
<br/><br/><label>Subjects--Index Terms: </label>safety devices  anti-theft devices 
<br/><br/><label>Dewey Class. No.: </label>621-759