by (United States)G.D.Kraft;by (United States)W.N.Toy; (United States)D.F.Stout; by (United States)R.Bott;by (United States)W.L.Tu;by (United States)F.H.Croon; by (United States)D.A.Skoog;by (United States)D.M.West; (United States)D.A.Skoog; by (United States)R.H.Kraemer;by (United States)C.Newwell;by (United States)G.D.Suttles; by (United States)G.Whyburn;by (United States)E.Duda;by (United States)P.Walters; by (United States)H.Ibach;by (United States)D.L.Mills;by (United States)H.F.Harmuth; by (United States)E.G.Dolan;by (United States)D.E.Linsey;by (United States)E.G.Dolan; by (United States)G.Takeuti;by (United States)W.M.Zaring;by (United States)G.Takeuti; by (United States)R.G.White;by (United States)J.G.Walker;by (United States)W.H.Ailor; by (United States)R.L.Dekeck;by (United States)H.B.Gray;by (United States)D.C.Harris;