1987-06-26 /BB-PBQUA-BM_1990/01/7-documentation/ddt44c.mem 1987-06-26 /BB-PBQUB-BM_1990/01/7-documentation/ddt44c.mem 1987-06-26 /BB-PBQUC-BM_1990/01/7-documentation/ddt44c.mem 1987-06-26 /bb-l014q-bm_tops20_v6_1_atpch17/01/autopatch/ddt44c.mem 1987-06-26 /bb-l014r-bm_tops20_v6_1_atpch_18/01/autopatch/ddt44c.mem 1987-06-26 /bb-l014t-bm_tops20_v7_0_atpch20/01/autopatch/ddt44c.mem 1987-06-26 /bb-l014w-bm_tops20_v7_0_atpch_23/01/autopatch/ddt44c.mem