1986-08-26 /bb-l014q-bm_tops20_v6_1_atpch17/01/autopatch/dec2v4.ctl 1988-03-22 /bb-l014r-bm_tops20_v6_1_atpch_18/01/autopatch/dec2v4.ctl 1988-07-27 /bb-l014t-bm_tops20_v7_0_atpch20/01/autopatch/dec2v4.ctl 1988-07-27 /bb-l014w-bm_tops20_v7_0_atpch_23/01/autopatch/dec2v4.ctl