Extract from the Register of European Patents

EP Citations: EP0084164

Cited inSearch
Type:Patent literature
Publication No.:EP0031741  [A]
 (SCIENCE UNION & CIE [FR]);
Type:Patent literature
Publication No.:EP0037231  [X]
 (WARNER LAMBERT CO [US]);
Type:Patent literature
Publication No.:EP0051301  [AP]
 (CIBA GEIGY AG [CH])