Inventory of intellectual property protection laws and enforcement measures in the Westen Hemisphere (preliminary version) : utility models 

 - [Washington]US  OAS  1997 
 - 1 v. (various pagings) 
<br/><br/><label>Subjects--Topical Terms: </label><br/>INTELLECTUAL PROPERTY
<br/><br/><label>Universal Decimal Class. No.: </label>19.02.03 O687