Meinhardt, P.  <br/><br/>
Inventions, patents & trade marks  (Book) 

 - London  Gower Press  1971 
 - 397 p.  25 cm. 
<br/><br/><label>ISBN: </label>071610069X 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Inventions Patent laws and legislation
<br/><br/><label>Universal Decimal Class. No.: </label>608 MEI  / 12549