Patent office hand book / 

 - 2d ed. 
 - Karachi :  Manager of Publications,  1962. 
 - 311 p. ;  25 cm. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Patent laws and legislation--Pakistan.
<br/><br/><label>Dewey Class. No.: </label>346.048  / PAT