Guthrie v. Curlett

(after stating the facts as above). The appellant recognized the fact that the number and size of freight tariff indexes required to be filed made both their compilation and use difficult, and set himself to the task of solving the problem of putting them in such condensed form that these difficulties were lessened. His idea for solution consisted in a consolidation made possible by the use of ruled columns and compound specific interest symbols as above stated. This idea alone, apart from the means of expressing it, is not protected by his copyrights. Holmes v. Hurst, 174 U. S. 82, 19 S. Ct.…