Extract from the Register of European Patents

EP Citations: EP0005466

Cited inSearch
Type:Patent literature
Publication No.:GB827703  
 [ ] (INVENTA AG);
Type:Patent literature
Publication No.:DE1720661  
 [ ] (BAYER AG);
Type:Patent literature
Publication No.:US4013626  
 [ ] (KATSUMOTO KIYOSHI, et al)