...that to encourage use of his new invention, the shopping cart, market owner Sylvan Goldman hired fake shoppers to push the carts around his store in Oklahoma City? Seems his customers were reluctant to give up their hand-carried baskets.
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| Number | Title | Issue Date |
| 7414804 | TMR/GMR amplifier with input current compensation An amplifier system with feedback current cancellation comprises an amplifier with an input, an output, and at least one stage. A feedback network communicates with the input and output of the amplifier. A feedback current cancellation module that provides a first c... | 08/19/2008 |
| 6917088 | Magneto-resistive devices A magneto-resistive device has a high reproducing output and is suitable for use as a CPP-GMR device. The magneto-resistive device has a first magnetic layer, a second magnetic layer, and a non-magnetic spacer formed between the first and second magnetic layers. The... | 07/12/2005 |
| 5618738 | Manufacturing method for magnetoresistance elements A method of manufacturing a magnetoresistance element that can accurately sort out truely defective products from apparently defective products due to the manufacturing processes. Manufacturing processes for MR elements includes a MR element formation pro... | 04/08/1997 |
| 4922126 | Circuit for shaping a measurement-signal voltage into a square-wave signal To derive a stable square-wave signal from a measurement-signal voltage obtained from a voltage divider and containing a DC component and an AC component, the low end of the voltage divider is grounded through a load resistor shunted by the series combina... | 05/01/1990 |
| 4835415 | Circuit for amplifying and shaping an AC signal A circuit for amplifying a measurement signal having an AC component and obtained from the tap of a voltage divider which is connected via a dropping resistor to a supply voltage and includes at least one magneto-resistor, and for shaping the measurement ... | 05/30/1989 |
| 4301418 | Magnetoresistive power amplifier A process and a small, sensitive, low noise, high gain, power amplifier used in the process, for exploiting the anisotropic magnetoresistance effect in a ferromagnetic thin-film. The magnetization of the thin-film is biased to lie along the hard axis. The... | 11/17/1981 |