TY  - RPRT
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.
AU  - Robbins, David
PY  - 1965
PB  - National Bureau of Standards
CY  - Gaithersburg, MD
SN  - NBS TN 263
DO  - 10.6028/NBS.TN.263
ER  -