D U L <br/><br/>
Standerds on electronics 1938 
by D U L 
 -  1938 
 - p.  cm. 
<br/><br/><label>Standard No.: </label>77533 
<br/><br/><label>Source: </label> Textual 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Electronic engineering
<br/><br/><label>Dewey Class. No.: </label>D65e, G8