Geier, Oscar A. <br/><br/>
Patents: law and practice 

 - New York  Richards &amp; Geier  1928 
 - 48 p. 
<br/><br/><label>Subjects--Topical Terms: </label><br/>PATENTES
<br/><br/><label>Universal Decimal Class. No.: </label>A/347.77/G35