1981-04-16 /bb-x130a-sb/03/accchk.exe 1986-01-30 /BB-F492Z-DD_1986/04/1,4/accchk.exe 1986-01-30 /BB-F493Z-DD_1986/01/10,7/accchk.exe 1986-01-30 /BB-FP64A-SB_1986/01/10,7/usage/accchk.exe 1986-01-30 /tops10_tools_bb-fp64a-sb/01/10,7/usage/accchk.exe 1988-09-01 /BB-FI81B-DD_1989/04/1,4/accchk.exe 1988-09-01 /tops10_tools_bb-fp64b-sb/01/10,7/usage/accchk.exe