Historical Document · 1993

US Patent 5,210,708: Compact Electronic Calculator Equipped with Graphic Display Function (Casio)

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Casio's patent on shading the area of a definite integral on a calculator graph: priority 28 November 1990, granted 11 May 1993.

Author

Osamu Negishi

Year

1993

Type

Historical Document

Credit

US Patent and Trademark Office; via Google Patents.

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