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Primary view of The Ultra-Violet and Visible Transmission of Eye-Protective Glasses
Gibson, K. S. & McNicholas, H. J.
June 7, 1919
Primary view of New Forms of Instruments for Showing the Presence and Amount of Combustible Gas in the Air
Weaver, E. R. & Weibel, E. E.
June 23, 1919
Primary view of Effect of Rate of Temperature Change on the Transformations in an Alloy Steel
Scott, Howard
July 10, 1919
Primary view of An Apparatus for Measuring the Relative Wear of Sole Leathers, and the Results Obtained with Leather from Different Parts of a Hide
Hart, R. W. & Bowker, R. C.
November 22, 1919
Primary view of Thermal Expansion of Insulating Materials
Souder, Wilmer H. & Hidnert, Peter
December 27, 1919
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