Historical Document · 2004

US Patent 6,771,252: Shading of Inequalities on a Graphing Calculator (Texas Instruments)

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TI's patent on showing inequalities as shaded regions on a small screen: priority 20 December 2000, granted 3 August 2004.

Author

Michelle A. Miller, Jian Zhang

Year

2004

Type

Historical Document

Credit

US Patent and Trademark Office; via Google Patents.

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