In 1608, Dutch eyeglass maker Hans Lipperhey filed the first patent for a working telescope. The patent was denied.
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| Number | Title | Issue Date |
| 7304241 | Swivel connector, cable, and assembly An assembly having a connector capable of rotating up to about +/−170 degrees; and a plurality of conductors, sized in the range of gauge 22 to gauge 26. ... | 12/04/2007 |
| 5542449 | Single-outlet hot/cold water faucet with a water temperature display device A single-outlet hot/cold water faucet of the type having a handle, a valve connected to the handle by a connecting plate and a lever and moved to open or close the water outlet, a revolving shaft turned by the handle to regulate the temperature of water i... | 08/06/1996 |