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About frist scientific calculator powered by solar cells and button cells
08-29-2017, 01:30 PM
Post: #9
RE: About frist scientific calculator powered by solar cells and button cells
Canon were also one early adapters of the small and thin japanese style scientific calculators. The soviet MK-71 is interesting, which I noticed while searching for the fx-900.
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RE: About frist scientific calculator powered by solar cells and button cells - Vtile - 08-29-2017 01:30 PM



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