Votomatic punchcards

In 1965, Joseph Harris, with the help of William Rouverol, patented the Votomatic punchcard voting system in which a voter marks choice by punching a hole in a prescored card marked with numbers which correspond to candidates and ballot issues listed in a separate booklet.

The votes were then tabulated by a computerized counting machine. Eventually this system became the most commonly used type of punchcard voting system.