Extract from the Register of European Patents

EP Citations: EP0411237

Cited inSearch
Type:Patent literature
Publication No.:US4428481  [A]
 (BASILI ROBERT A [US]);
Type:Patent literature
Publication No.:GB2188615  [A]
 (CASLIN JAMES);
Type:Patent literature
Publication No.:US4784264  [AD]
 (SYKES PHILIP K [US])