This improved fixed-super-abrasive tool for grinding and polishing toric and other curvilinear lenses is produced by a novel method of manufacture and comprises a substantially-rigid, super-abrasive-free backing member and a malleable preformed super-abrasive wafer conformed and releasably secured thereto....http://www.google.com.au/patents/US4010583?utm_source=gb-gplus-sharePatent US4010583 - Fixed-super-abrasive tool and method of manufacture thereof
