1978-09-06 /AP-4178E-RM/01/swskit-sources/impanx.rel 1978-09-06 /BB-4170G-SM/01/sources/impanx.rel 1984-02-14 /SRI_NIC_PERM_SRC_1_19910112/01/5-3-monitor/impanx.rel 1985-04-16 /SRI_NIC_PERM_SRC_1_19910112/01/6-monitor/impanx.rel 1985-07-11 /tops20_v6_1_tcpip_distribution_tp_ft6/01/6-1-sources/impanx.rel 1988-03-12 /SRI_NIC_PERM_SRC_1_19910112/01/6-1-monitor/impanx.rel 1990-06-07 /SRI_NIC_PERM_SRC_3_19910112/01/monitor/impanx.rel