- Herzstark, Curt, d. 1988
- University of Illinois at Urbana-Champaign, University Library
Curta calculators were designed by Austrian, Curt Herzstark. They were only manufactured from 1948 through 1970. When new pocket calculators appeared in the seventies, Curta went out of business. Only two models were made. Model I gave 11 digit results and Model II gave 15 digit results. Using a Calculator. 16 History; 10-12 Science; 13 Science, Technology and Society.
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