For example, if you’re looking for a scientific calculator for engineering, the best-rated Casios are the following: fx-82ES Plus, fx-991EX Classwiz, fx-991MS, fx-82ES, fx-100MS. Is Casio fx-100MS a scientific calculator? Is a Casio calculator the same as TI-84? What is the...
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Calculatordoi:US2564991 APaul, Robert HUS
A calculator having a flat surface having two vertical scales thereon and a slideable rule having two horizontal scales thereon. The rule is capable of slideable motion in a direction parallel to the vertical scales. The flat surface further has a plurality of equally spaced parallel lines with ...
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The present invention provides an electronic handheld calculator for automatically calculating cooking times and cooking temperatures for various quantities of different foods. The calculator is provided with an input control system, which is used to designate different types and amounts of foods. As ...