1987-09-21 /bb-l014q-bm_tops20_v6_1_atpch17/01/autopatch/lnkhst.x17 1988-01-05 /bb-jr93d-bb/17/7,6/ap017/lnkhst.x17 1988-02-23 /bb-y390o-bm_tops20_v41_atpch_20/01/autopatch/lnkhst.x17 1988-06-01 /bb-jr93e-bb/17/7,6/ap017/lnkhst.x17