TY  - RPRT
TI  - Drawings of micrometer U-tube manometers for the ranges up to 100 mm of mercury 
AU  - Thomas, Allan M
PY  - 1967
PB  - National Bureau of Standards
CY  - Gaithersburg, MD
SN  - NBS TN 420
DO  - 10.6028/NBS.TN.420
ER  -