Square is building out its loyalty tools for merchants as it increasingly competes with Google, PayPal, ... Square Says Bye To Paper Punch Cards, Adds Digital Loyalty Card. ByTomio Geron, ...

It uses a lever and spring system to allow the user to line up and punch holes with cylindrical blades through stacked sheets of paper with ease. The longer the lever, the more sheets of paper can ...

he filed a patent for a device he created that he called the "paper punch for binders," which he uses so that he can better punch holes in the papers of the binder he is making. In 1885, the American ...