TY - GEN AU - Stratton, S W C2 - , National Institute of Standards and Technology, Gaithersburg, MD DA - 1903-01-01 05:01:00 DO - https://doi.org/10.6028/NBS.CIRC.1 LA - en PB - , National Institute of Standards and Technology, Gaithersburg, MD PY - 1903 TI - Bureau circular no. 1::verification of standards and measuring instruments ER -