Nos. 18875-18877. July 14, 1964. Rehearing Denied August 31, 1964. R. Max Etter, Spokane, Wash., for appellants. Manley B. Strayer, Robert H. Huntington, Charles J. McMurchie, Rockwood, Davies, Biggs, Strayer Stoel, Portland, Or., for appellee-C.J. Montag Sons, etc. and others. Hart Snyder, McKevitt, Snyder Thomas, Spokane, Wash., for appellee-Curtis Constr. Co. Before HAMLEY, Circuit Judge, MADDEN, Judge of the United States Court of Claims, and JERTBERG, Circuit Judge. MADDEN, Judge: These three