Historical Document · 2013

US Patent 8,499,014: Functionality Disable and Re-enable for Programmable Calculators (Texas Instruments)

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TI's patent on Press-to-Test, disabling a calculator's programs and applications for an exam: filed 1 June 2005, granted 30 July 2013.

Author

Michelle A. Miller, Douglas W. Feltz, Gary C. Vonberg

Year

2013

Type

Historical Document

Credit

US Patent and Trademark Office; via Google Patents.

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