Griliches  Zvi <br/><br/>
Patent statistics an economic indicators: a survey 

 - Cambridge      US 1990     
 - 102p 
 - Discussion paper .
<br/><br/><label>Subjects--Topical Terms: </label><br/>  <Patents>
<br/><br/><label>Dewey Class. No.: </label>US/Har.U/HIER/DP-1473