Chowdhury, Salil K Roy   <br/><br/>
Laws of trade marks copyrights patents and designs 

 - Calcutta:   Kamal Law House,   1996 
 - 740p.  
<br/><br/><label>Subjects--Topical Terms: </label><br/>Patents 
<br/><br/><label>Subjects--Index Terms: </label>Designs 
<br/><br/><label>Universal Decimal Class. No.: </label>347-77  / N9.2