Patent

Kategorie:Wirtschaft: Patent:


Home page of the United States Patent and Trademark Office's main web site.
http://www.uspto.gov/
Eintrag vom: 12.03.2014.
uspto



Espacenet: free access to the database of over 80 million patents
http://worldwide.espacenet.com/
Eintrag vom: 07.10.2014.
espacenet