15 Oct Curta Hand-crank mechanical calculator
Posted at 16:06h in
Contina AG Mauren of Liechtenstein begins producing the Curta portable, hand-crank, mechanical calculator. This device was designed by Curt Herzstark while he was imprisoned at Buchenwald Concentration Camp, during WWII. Designing the Curta probably saved Mr. Herzstark’s life and was the envy of all land surveyors until the introduction of electronic calculators in the 1970s.