1977-03-14 /ap-c796e-sb/01/opser.exe 1980-07-16 /bb-d549g-sb/01/opser.exe 1986-01-29 /BB-F492Z-DD_1986/04/1,4/opser.exe 1986-01-29 /BB-F494Z-DD_1986/01/10,7/opser.exe 1986-01-29 /cuspmar86binsrc_2of2_bb-fp63a-sb/01/10,7/opser/opser.exe 1988-09-01 /BB-FI81B-DD_1989/04/1,4/opser.exe 1988-09-01 /cuspbinsrc_2of2_bb-fp63b-sb/01/10,7/opser/opser.exe