I.T.B  <br/><br/>
Jig Boring 

 - England  Engg.Industry  1971 
 - 120 
<br/><br/><br/>ENGLISH 
<br/><br/><label>Subjects--Facted Index Terms: </label><br/>Jig Boring
<br/><br/><label>Dewey Class. No.: </label>621  / ITB