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 |
| 6379405 | Fire starter and method of making same A fire starter consists of a ring-shaped mass of combustible of wax and wood. It consists of a series of inverted frusto-conical sections connected together by a series of inverted triangular connecting sections and a having a substantially central apertu... | 04/30/2002 |