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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 |
| 5350591 | Additive for foaming coffee A formulation for a food additive in the form of a dry powdered mixture is disclosed. The mixture is used with a hot coffee beverage--freshly brewed or prepared from instant coffee--to form a foamed head thereon. The formulation consists of a sugar, sodiu... | 09/27/1994 |
