A combined paper-knife, book-marker and advertising medium

摘要

161,109. Grob, E., and Neuweiler, A. July 16, 1920. Paper-knives. - A combined book-marker, paper-knife, and advertising medium comprises a thin plate a bound in with the book, perforated at d near its bound.in edge c to facilitate its detachment, with or without a knife-edge b at its opposite edge, and slitted at e to form a tab f for use as a bookmarker. The plate may have any suitable shape to correspond to the advertisements placed on it.