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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 |
| 7045746 | Shadow-free shutter arrangement and method As part of a system for processing a workpiece by applying a controlled heat to the workpiece, a heating arrangement includes an array of spaced apart heating elements for use in a confronting relationship with the workpiece to subject the workpiece to a direct radi... | 05/16/2006 |
| 6414276 | Method for substrate thermal management This invention is a thermal management method for efficient, rapid, controllable and uniform thermal management over a wide temperature range. The method integrates a thermal source, thermal sink and a thermal diffuser. According to the invention, a therm... | 07/02/2002 |
| 6377778 | Fixing device using induction heating A device of this invention has a hollow heat roller (1), the surface of which has a coat of a metal layer, an excitation coil which is arranged in the heat roller (1) and generates a magnetic flux in the heat roller (1) to heat it by induction, and a pres... | 04/23/2002 |
