Extract from the Register of European Patents

EP Citations: EP0204224

Cited inSearch
Type:Patent literature
Publication No.:DE3307466  [Y]
 (STANDARD ELEKTRIK LORENZ AG [DE]);
Type:Patent literature
Publication No.:GB2128768  [Y]
 (HITACHI LTD);
Type:Patent literature
Publication No.:DE3430762  [A]
 (HITACHI LTD [JP], et al);
Type:Patent literature
Publication No.:EP0126003  [A]
 (FRANCE ETAT [FR])