Buckles, Robert A. <br/><br/>
Ideas inventions and patents 

 - New York  John Wiley & Sons  1957 
 - 270p.  23cm. 
<br/><br/><label>Subjects--Uniform Titles: </label><br/>Patents and Inventions
<br/><br/><label>Dewey Class. No.: </label>608  / B94I