0000032878-98-000013 S-3/A 1 19980424 NASD ENERGY CONVERSION DEVICES INC 0000032878 3690 381749884 DE 0630 S-3/A 33 333-50749 98600084 1675 W MAPLE RD TROY MI 48084 8102801900 ENERGY CONVERSION LABORATORIES INC 19710603 S-3/A 1 000003287898000013-001-seq1-s-3-a.txt S-3/A