Baker, R. <br/><br/>
New and improved: inventors and inventions that have changed the modern world  the science reference library 

 - British Library  London  1976 
 - 168p. 
 - Patents 
<br/><br/><label>ISBN: </label>0 7141 0380 2 
<br/><br/><label>Nat. Bib. No.: </label>3414 
<br/><br/><label>Nat. Bib. Agency Control No.: </label>608.3 BAK 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Engineering & Technology
<br/><br/><label>Universal Decimal Class. No.: </label>608.3