Bohm, C., Macchina calcolatrice digitate a programma con programme prrnnli nato fisso con tastiera algebrica ridotta atta a comporre formule mediantr In combinazione del singoli elementi simbo/ici [Programmable digital computer with a fixed preset program and with an algebraic keyboard able to compose formulae by means of the combination of single symbolic elements], Italian Patent Application No. 13,567, filed in Milan on October 1, 1952 (1952) |