also the leap into electronic typesetting, remaining essentially
L-T3144
L-T3146 series
L-T3224 series
L-T3145 series
L-T3148 series
L-T3292 series
L-T3229 series
L-T3154 series
L-T3291 series
L-T3147 series
L-T3223 series
L-T3293 series
