Berle, Alf K. <br/><br/>
Inventions, patents, and their management 

 - London  D. Van nostrand company,  1959 
 - x, 602p. 
<br/><br/><label>Subjects--Index Terms: </label>Inventions. patents, management 
<br/><br/><label>Dewey Class. No.: </label>658.002  / BER