Connel/Robert/ S.  <br/><br/>
Jig Boring 

 - London  Machinery Publication & co 
 - 160 
<br/><br/><br/>ENGLISH 
<br/><br/><label>Subjects--Facted Index Terms: </label><br/>JIg Boring
<br/><br/><label>Dewey Class. No.: </label>621.9  / CON