Valkenburgh, Van <br/><br/>
Basic synchros & servomechanisms 

 - London  The technical press  1964 
 - 110p.  P.2 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Engineering<br/>Mechanical engineering
<br/><br/><label>Dewey Class. No.: </label>621  / VAL