0000820318-08-000041 4 1 20080816 20080819 20080819 II-VI INC 0000820318 3827 251214948 PA 0630 375 SAXONBURG BLVD SAXONBURG PA 16056 724-352-4455 375 SAXONBURG BLVD SAXONBURG PA 16056 KRAMER FRANCIS J 0001191458 4 34 000-16195 081027173 412-352-4455 C/O II-VI INCORPORATED 375 SAXONBURG BLVD SAXONBURG PA 16056 4 1 primary_doc.xml PRIMARY DOCUMENT