Narayanan P. Au. <br/><br/>
Patent law 
Narayanan P. Au. 
 - Calcutta  Eastern Law House India       1975 
 - 1027p  cm. 
<br/><br/><label>Standard No.: </label>21,162 
<br/><br/><label>Source: </label> Textual 
<br/><br/><label>Dewey Class. No.: </label>Z2:2673, L5