TY - GEN AU - Strohlein, James N C2 - , National Institute of Standards and Technology, Gaithersburg, MD DA - 1970-01-01 05:01:00 DO - https://doi.org/10.6028/NBS.TN.516 LA - en PB - , National Institute of Standards and Technology, Gaithersburg, MD PY - 1970 TI - A selective roll-to-roll printer for producing duplicate microfilm copies.: ER -