An electronic hand-held resistor value decoding calculator is disclosed. The calculator includes a keypad comprising a keypad housing and an array of ten manually operated keypad switches for receiving input signals. Each of the keypad switches has a numeral from zero through nine associated therewith. Patent US5150315 - Electrical resistor value decoding calculator.
Try the new Google Patents, with machine-classified Google Scholar results, and Japanese and South Korean patents. KatzinOriginal AssigneeKatzin Lawrence FExport CitationBiThis article needs additional citations for verification. Please help improve this article by adding citations to reliable sources. Unsourced material may be challenged and removed. (May 2011) ( Learn how and when to remove this template message). Pads mostly containing numbers are called a numeric keypad.
Numeric keypads are found on alphanumeric keyboards and on other put option payoff calculator keypad which require mainly numeric input such as calculators, push-button telephones, vending machines, ATMs, Point of Sale devices, combination locks, and digital door locks. Many devices follow the E.11 standard for their arrangement. A calculatorA computer keyboard usually has a small numeric keypad on the side, in addition to the other number keys on the top, but with a calculator-style arrAn electronic hand-held resistor value decoding calculator is disclosed.
The keyboard has an alphanumeric keypad with alphanumeric keys, a calculator keypad with calculator keys including numeric and arithmetic keys which also function as the standard number pad on a calculator, a keypad matrix, a processor and a bi-directional communications. Patent US114977 - Keyboard calculator system. Smith, Grant M. Please check your local sales tax laws. The iCalc Bluetooth Calculator Keypad from SMK-Link is a keypad and calculator that connects to your computer via Bl.
Put option payoff calculator keypad