Defrance Joseph J <br/><br/>
Electron tubes and semiconductors 
Defrance Joseph J 
 -  1958 
 - p.  cm. 
<br/><br/><label>Standard No.: </label>31638 
<br/><br/><label>Source: </label> Textual 
<br/><br/><label>Subjects--Topical Terms: </label><br/> Electricity<br/>Semiconductors
<br/><br/><label>Dewey Class. No.: </label>C6:142, J81;1-;2