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...During the Civil War, the Confederacy established its own Patent Office which issued 266 patents, a third of which concerned implements of war.
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| Number | Title | Issue Date |
| 7292022 | Current detection resistor, mounting structure thereof and method of measuring effective inductance A mounting structure for current detection resistor device has a feature that voltage detection terminal wiring is configured so as to extend along a current path in the resistor body first, and then, to bend at right angles to the current path, while maintaining el... | 11/06/2007 |
| 7166934 | Package-based voltage control A device package that receives a voltage from a power supply on a motherboard and that includes provisions for a voltage control element that controls the power supply voltage. The provisions for the voltage control element are such that the voltage from the power s... | 01/23/2007 |
| 6876291 | Electrical resistor for measuring preferably high-frequency alternating currents The present invention relates to an electrical resistor (1), in particular for measuring alternating currents of high frequency, comprising connectors (2, 3) for feeding the current to be measured and connectors (4, 5) for tapping the voltage to... | 04/05/2005 |
| 5081341 | Electrical heating element for use in a personal comfort device A heated comfort product such as an electrical blanket having an elongate electrical resistance element is connected in a particular manner to an AC power line by connecting the ends of conductors used in the element at a common end to respective AC power... | 01/14/1992 |
| 4617548 | Current sensing resistance apparatus Current sensing resistance apparatus in the form of a single piece, unitary, U-shaped conductor fabricated from thin flat ribbon material to provide two parallel leg portions terminating in opposite bifurcated ends each pair of which are dissimilarly size... | 10/14/1986 |
