Extract from the Register of European Patents

EP Citations: EP0049711

Cited inSearch
Type:Patent literature
Publication No.:US1963598  
 [ ] (TINKER JOHN M, et al);
Type:Patent literature
Publication No.:US2525508  
 [ ] (ZIMMERMAN BERNHARD G);
Type:Patent literature
Publication No.:DE2226405  
 [ ] (HOECHST AG)