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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 |
| 7201402 | Book with spinning globe The book with spinning globe has a front cover, a back cover, and a spine or binding portion which binds the front cover, and the back cover. An earth globe is rotatably connected to a front cover, back cover, or spine so that the globe is rotatable about an axis ex... | 04/10/2007 |
| 6493595 | Method for adjusting several controllers used to control a controlled system consisting of coupled controlled members A method automatically determines, controller parameters of a plurality of controllers for controlling a process controlled system that is composed of a plurality of coupled control systems. The controller parameters of the respective controllers are calc... | 12/10/2002 |
| 6357083 | Plant material processing system A system for processing plant material is provided which separates plant fibers from the woody portions of the material to produce a commercially desirable length of fiber and to grind the shorter woody portions that have been separated from the longer fi... | 03/19/2002 |
