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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 |
| 7216604 | Retractable arch system for a boat A retractable arch system for a boat is provided that includes at least four substantially vertical legs for permanent installation on the boat. A first traverse member forms a first arch and is removably coupled by first and second separable couplings to two of the... | 05/15/2007 |
