Item : Directions for operating the auto-loader, [1933]. Item : The answer to grade crossing protection: the auto-stop ... an electrically controlled warning and highway barrier, 1935. Item : The modern philosophy in grade crossing protection, 1937. Item : Damage-free loader, DF; general purpose railroad equipment, n.d. Item : Evans electro-pneumatic auto-stop provides economical, continuous and positive grade crossing protection, [1939]. Item : Evans auto-stop concealed type barriers, [ca. 1942]. From war housing to the home with a future, advertisement, 1944. Item : Evans works wonders with wood or metal; the story of Evans Products Company, 1945. Item : The Evans DF loader, a permanent lock-in device for box-car lading ... , [1951]. Item : The Evans DF loader locks in the load from floor to roof - from end to end, 1952.
