METHOD FOR BINDING SLIPS COATED WITH COLOR DEVELOPING CHEMICAL AND THE SAME SLIP

摘要

PURPOSE: To provide slips which prevent the fingers and papers from staining and avoid the use of ink ribbon. ;CONSTITUTION: The slips 3 arranged in bound form are composed of some sheets of paper, each having one side 1 coated with a chemical adapted to produce a color on the paper surface upon applying a force thereto, and fastened together, so that the chemical-coated side 1 will become a rear face 2.;COPYRIGHT: (C)1993,JPO&Japio