Mark Twain (Samuel L. Clemens) received Patent No. 121,992 for "An Improvement in Adjustable and Detachable Straps for Garments." He later received two more patents: one for a self-pasting scrapbook and one for a game to help players remember important historical dates.
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| Number | Title | Issue Date |
| 7932466 | Nautilus self pressurizing equipment enclosure A gasketless waterproof ingress prevention enclosure for electronics wherein the enclosure does not rely on traditional sealing means to restrain water. The enclosure includes a five-sided open bottom air tight cavity comprising a liquid volume fluidly coupled to a ... | 04/26/2011 |
| 7918203 | Motor oil heating system, product and method A motor oil heating system for a vehicle comprising one or more solar panels comprised of one or more photovoltaic cells; one or more heaters thermally coupled to the motor oil, wherein the solar panels are electrically coupled to the heaters and power the heaters b... | 04/05/2011 |
| 7626287 | High voltage loadbreak switch safety indicator A loadbreak, switch safety device mechanism, which provides easily visible, positive alignment and engagement of high-voltage switch loadbreak actuating and trip arms. The apparatus can be easily adapted to various types of high-voltage loadbreak designs. The appara... | 12/01/2009 |
| 7412975 | Handheld gas propelled missile launcher A handheld gas propelled missile launcher which deploys projectiles of varying payloads through the muzzle, and a ballistic module for changing payloads expeditiously. ... | 08/19/2008 |