Introduction to patent law & practice :  the basic concepts ; a WIPO training manual 

 - 111 S. 
 - WIPO-Publication  No. 627€ .
<br/><br/> 21.277 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Patent<br/>Patentschutz<br/>Internationales Patentwesen