Keywords: Divisumma 18 calculator, designed by Mario Bellini & A. De Gregori, Olivetti & Co., Milan, 1973, plastic case - Museum für Angewandte Kunst Köln - Cologne, Germany - DSC09676.jpg en Divisumma 18 calculator designed by Mario Bellini A De Gregori Olivetti Co Milan 1973 plastic case As a utilitarian object this work is NOT subject to copyright laws In Finland the EU and Russia design rights are granted for a maximum of 25 years This protection period has passed and hence this work is now in the public domain 2015-11-28 11 15 38 own Daderot other versions cc-zero Collections of the Museum für Angewandte Kunst Köln Divisumma 18 |