TY  - RPRT
TI  - Air-Maze aircraft filters 
AU  - Coblentz, Carl W
AU  - Goddard, William F
PY  - 1956
PB  - National Bureau of Standards
CY  - Gaithersburg, MD
SN  - NBS RPT 4569
DO  - 10.6028/NBS.RPT.4569
ER  -