TY - GEN AU - Robbins, David C2 - , National Institute of Standards and Technology, Gaithersburg, MD DA - 1965-01-01 05:01:00 DO - https://doi.org/10.6028/NBS.TN.263 LA - en PB - , National Institute of Standards and Technology, Gaithersburg, MD PY - 1965 TI - Disclosures on a precipitation indicator, moisture detector, vacuum ball valve, film strip printer, normal incidence interferometer, color sorter, and coaxial T. Editors::David Robbins and Alvin J. Englert. ER -