Records of the strasbourg diplomatic conference on the  international patent classification 

 - Geneva  World intellectual property organization Geneva      1973 
 - 203p  cm. 
<br/><br/><label>Standard No.: </label>19,063 
<br/><br/><label>Source: </label> Textual 
<br/><br/><label>Dewey Class. No.: </label>Z,2673p53,N71, L3