Combined electronic calculator and credit card

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Details

235380, G06F 1502, G06K 500

Patent

active

047544180

ABSTRACT:
A key input unit, a display unit and a solar cell are arranged on one surface of a card-like electronic calculator. This surface serves as an electronic calculator. The outer shape of the card-like electronic calculator is the same as that of a credit card. Furthermore, a magnetic stripe portion on which predetermined data is recorded, and embossed portions for displaying information are formed on the other surface of the calculator. Therefore, the calculator also serves as a credit card.

REFERENCES:
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IEEE Spectrum, vol. 11, No. 12, Dec. '74, pp. 56-62, N.Y., U.S.; Svigals et al.: "Magnetic-Stripe Credit Cards: Big Business in the Offing".

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