DEVICE FOR CONVERTING ONE CURRENCY INTO ANOTHER AND FOR RECORDING OR DEDUCTING THE PRICE OF THE DESIRED ARTICLE

摘要

The invention concerns a device for converting one currency into another (B1) and for recording (B2) or deducting (b3) the price of the desired article such that the user can permanently know the total amound spent. All these functions are possible by using only three keys thereby enabling the device to be used simply with one hand and the print advertisements on the device free surfaces. The invention is particularly designed for the monetary conversion of one national currency into European currency (Euro).