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Primary view of The National Safety Competition of 1929
Adams, William Waugh
May 1930
Primary view of Coal-Mine Fatalities in April, 1931
Adams, William Waugh & Chenoweth, L.
May 1931
Primary view of The Magnus Effect in Theory and in Reality
Ahlborn, F.
May 1930
Primary view of Model Airplane News, Volume 20, Number 5, May 1939
Air Age, Inc.
May 1939
Primary view of A simplified method for the calculation of airfoil pressure distribution
Allen, H. Julian
May 1939
Primary view of A Study of Transparent Plastics for use on Aircraft, Special Report
Axilrod, Benjamin M. & Kline, Gordon M.
May 12, 1937
Primary view of [Mecklenburg Declaration Commemorative Medal]
Bastian Bros Co.
1931-05-17/1941-05-21
Primary view of Greenhouse tomatoes.
Beattie, James H. (James Herbert), b. 1882
May 1939
Primary view of Tank Tests of a Model of the NC Flying-Boat Hull - N.A.C.A. Model 44
Bell, Joe W.
May 1936
Primary view of Rammed Earth Walls for Buildings.
Betts, M. C. (Morris Cotgrave), 1875-1936 & Miller, T. A. H. (Thomas Arrington Huntington), 1885-
May 1937
Primary view of Effect of spark-timing regularity on the knock of engine performance
Biermann, Arnold E.
May 1938
Primary view of Heat transfer from cylinders having closely spaced fins
Biermann, Arnold E.
May 1937
Primary view of The Effect of Compressibility on Eight Full-Scale Propellers Operating in the Take-Off and Climbing Range
Biermann, David & Hartman, Edwin P.
May 18, 1938
Primary view of Procedure of the Purchasing and Supply Departments of the Miami Copper Company, Miami, Arizona
Bishop, Fred L. & Keller, Albert E.
May 1932
Primary view of Cattle grubs or heel flies with suggestions for their control.
Bishopp, F. C. (Fred Corry), 1884-1970; Laake, E. W. (Ernest William), 1887-1986 & Wells, R. W. (Roscoe Ward), b. 1890.
May 1936
Primary view of Visitor's Impressions of New Orleans Before 1860
Boyles, Jane Russell
May 1937
Primary view of Engineering Study of the Seminole Area, Seminole and Pottawatomie Counties, Oklahoma
Brandenthaler, R. R.; Morris, W. S. & Bopp, C. R.
May 1930
Primary view of Radiator Design and Installation
Brevoort, M. J. & Leifer, M.
May 1939
Primary view of The effect of air-passage length on the optimum fin spacing for maximum cooling
Brevoort, Maurice J.
May 1938
Primary view of Improved airplane windshields to provide vision in stormy weather
Clay, William C.
May 23, 1934
Primary view of Cooperative Marketing of Fleece Wool
Coon James M.
May 1939
Primary view of Economic Relationships Between the United States and Chile
Craft, Don Lee
May 1939
Primary view of An Analysis of the Factors Affecting Consumer Co-operation in the United States
Davidson, Curtis D.
May 1939
Primary view of Manganese: Its Occurrence, Milling, and Metallurgy; Part 1
Dean, Reginald S.; DeVaney, Fred D. & Coghill, Will H.
May 1934
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