Singer, Berthold <br/><br/>
Patent and trade mark laws of the world 
by B. Singer... 
 - Chicago  [Hammond press, W. B. Conkey company]  1911. 
 - 2 p. b., 7-539 p.  24 cm. 
<br/><br/><label>LCCN: </label>11006040  
<br/><br/><label>Subjects--Topical Terms: </label><br/>Patent laws and legislation<br/>Trademarks
<br/><br/><label>Subjects--Index Terms: </label>Patente de invención  Legislación. Marcas de fabricas. 
<br/><br/><label>LC Class. No.: </label>K89 S5 1911