Did You Know...
...that Kleenex tissue was originally designed to be a gas mask filter? It was developed at the beginning of World War I to replace cotton, which was then in short supply as a surgical dressing.
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| Number | Title | Issue Date |
| 7219893 | Gaming machine A gaming machine includes a liquid crystal display having a liquid crystal panel and a light guiding plate placed at the rear of the liquid crystal panel and formed with a light deflection pattern for guiding light emitted from illumination means into the liquid cry... | 05/22/2007 |
| 5261315 | Precision capillary discharge switch The apparatus and method disclosed herein relates to a precision capillary discharge switch to deliver a predetermined power across a gap at the ends of electrodes enclosed in a containment envelop with a fluid media therein. A method of calibration is us... | 11/16/1993 |
| 4394622 | High voltage coaxial switch A coaxial high voltage, high current switch having a solid cylindrical cold cathode coaxially surrounded by a thin hollow cylindrical inner electrode and a larger hollow cylindrical outer electrode. A high voltage trigger between the cathode and the inner... | 07/19/1983 |
| 4074202 | Biasing circuit for thyratron A thyratron is provided with at least one pair of adjacent electrodes separating two voltage withstanding gaps. In order to reduce the likelihood of voltage breakdown occurring across one of the gaps that electrode of a pair of adjacent electrodes which i... | 02/14/1978 |
