[1][2] After completing his classical studies, he enrolled at the Università Cattolica del Sacro Cuore where in 1933 he obtained a degree in Literature and Philosophy.
[3] Thanks to the study in lexicography, begun during the preparation of the thesis and continued later, Marinoni was able to identify the genesis, which has its roots in the Middle Ages, of the dictionary.
[3] In 1968 he was appointed by Giuseppe Saragat, President of the Italian Republic, member of the Ministerial Commission for the edition of the Manuscripts of Leonardo da Vinci.
[4] Many companies, such as Philips and IBM, helped publish his work and many world-class cultural institutions invited him to hold seminars and meetings.
In 1982 he was appointed president of the Commissione Vinciana Authority of Milan, which still brings together the greatest Italian and foreign scholars of Leonardo da Vinci.