1931

New products introduced during the year include the IBM 400 series alphabetical accounting machines, the first IBM machines to print alphabetic data; and the IBM 600 series calculating machines, the first IBM machines to perform multiplication and division. In addition, IBM releases the Public Utility Billing Machine, the Electroprint Time Stamp, the first automatic multiplying punch, and the first automatic reproducing punch.

The first permanent installation of the IBM translator system, based on the Filene-Finlay patent, is set up at League of Nations in Geneva.

The first motor drive duplicating punch and first automatic summary punch are developed.