Extract from the Register of European Patents

EP Citations: EP0292212

Cited inSearch
Type:Patent literature
Publication No.:EP0145801  [A]
 (HELL RUDOLF DR ING GMBH [DE]);
Type:Patent literature
Publication No.:EP0168818  [A]
 (TOSHIBA KK [JP]);
Type:Patent literature
Publication No.:US4639771  [A]
 (HATTORI YOSHIHISA [JP], et al)