U.S. Department of Commerce; National Bureau of Standards
view article (9.588148)
National Standard Hose Couplings and Fittings for Public Fire Service.
Department of Commerce, Washington, DC; National Bureau of Standards, Gaithersburg, MD
NBS C 50; NBS Circular 50; Circular of the Bureau of Standards No. 50,
November 25, 1914,
25 p.
U.S. Department of Commerce; National Bureau of Standards
view article (9.588148)
National Standard Hose Couplings and Fittings for Public Fire Service. 2nd Edition.
Department of Commerce, Washington, DC; National Bureau of Standards, Gaithersburg, MD
NBS C 50; NBS Circular 50; Circular of the Bureau of Standards No. 50; 2nd Edition,
June 8, 1917,
34 p.