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About frist scientific calculator powered by solar cells and button cells
08-17-2017, 02:27 PM
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Accutron Offline
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RE: About frist scientific calculator powered by solar cells and button cells
The Casio fx-115/fx-115M was introduced around 1985.
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RE: About frist scientific calculator powered by solar cells and button cells - Accutron - 08-17-2017 02:27 PM



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