1986-01-22 /bb-l014q-bm_tops20_v6_1_atpch17/01/autopatch/srtv5r.ddc 1988-03-18 /bb-l014r-bm_tops20_v6_1_atpch_18/01/autopatch/srtv5r.ddc 1988-03-18 /bb-l014t-bm_tops20_v7_0_atpch20/01/autopatch/srtv5r.ddc 1988-03-18 /bb-l014w-bm_tops20_v7_0_atpch_23/01/autopatch/srtv5r.ddc