also the leap into electronic typesetting, remaining essentially
L-T3147 series
L-T3223 series
L-T3293 series
L-T3294 series
L-T214~222
L-T203~213
L-T3172 series
L-T3314 series
L-T3209 series
L-T3210 series
L-T3272 series
L-T3327 series
