Empel M.Van <br/><br/>
Granting of European Patents 
Empel M.Van 
 - Leyden  A.W.Sijthoff Netherland          1975 
 - 435 
<br/><br/><label>Standard No.: </label>20,711 
<br/><br/><label>Source: </label> Textual 
<br/><br/><label>Subjects--Topical Terms: </label><br/>EUROPEAN PATENTS
<br/><br/><label>Dewey Class. No.: </label>Z1,2673, L5