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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 |
| 5022169 | Apparatus for ironing laundry An apparatus for ironing laundry comprising at least one semi-circular open dished bed (1), provided with a double wall with feed (5) and outlet (6) opening for passage of a heating medium, such as steam, and a roll (2) rotatably driven in each dished bed... | 06/11/1991 |
| 4414765 | Steam mangle with heat recycling to predryer Used hot air exhausted from perforated mangle drums 12-14 and/or steam condensate from curved guide troughs 15-17 cooperating with the drums is passed through the interior of a hollow, unperforated predryer cylinder 18. A pair of curved transport belts 40... | 11/15/1983 |
