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U.S. Department of Commerce; National Bureau of Standards
view article (1.0)Pyrometer Testing and Heat Measurements.Department of Commerce, Washington, DC; National Bureau of Standards, Gaithersburg, MD['NBS C 7', 'NBS Circular 7', 'Circular of the Bureau of Standards No. 7', '5th Edition']NBS C 7; NBS Circular 7; Circular of the Bureau of Standards No. 7; 5th Edition
October 1, 1913
19 p.