1983-04-22 /SRI_NIC_PERM_SRC_3_19910112/01/mm/blankt.mac 1983-04-22 /SRI_NIC_PERM_SRC_3_19910112/01/mm-new/blankt.mac 1987-10-02 /bb-ev83b-bm/01/tcpip-sources/blankt.mac 1987-10-02 /bb-ev83b-bm_longer/01/tcpip-sources/blankt.mac 1987-10-02 /tops20_v7_0_tcpip_distribution_tape/01/tcpip-sources/blankt.mac 1988-07-05 /SRI_NIC_PERM_SRC_3_19910112/01/mm-dom/blankt.mac