1988-10-31 /bb-bt99o-bb/01/netprm.x21 1988-10-31 /bb-jr93h-bb/21/7,6/ap021/netprm.x21 1988-10-31 /bb-jr93i-bb/21/7,6/ap021/netprm.x21 1988-10-31 /bb-jr93j-bb/21/7,6/ap021/netprm.x21