Shields, John Potter <br/><br/>
How to build proximity detectors and metal locators 

 - Slough   Foulsham   1966 
 - 128 p. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Electrical Engineering
<br/><br/><label>Dewey Class. No.: </label>621.3819  / S5552