Lerner, Josh <br/><br/>
150 years of patent protection 

 - Cambridge, Mass. :  National Bureau of Economic Research,  2000 
 - 38 
<br/><br/><label>Subjects--Topical Terms: </label><br/>PATENT LAWS AND LEGISLATION
<br/><br/><label>LC Class. No.: </label>K1505.4  / L476O