1985-07-02 /BB-M836C-BM/01/tools/typvfu/typvfu.ctl 1987-12-03 /tops20_version7_0_tools_tape_clock_tape/01/tools/typvfu/typvfu.ctl 1988-06-20 /bb-m836d-bm/01/tools/typvfu/typvfu.ctl