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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 |
| 4689947 | Apparatus and method for reducing broken fibers on the surface of a carbon fiber yarn bundle A method for reducing broken fibers on the surface of a carbon fiber bundle involves passing the yarn past a suction nozzle having an extended trailing edge which impacts the broken fibers as they pass the slot breaking off the fibers. The broken fibers a... | 09/01/1987 |
| 4222264 | Yarn monitoring device Yarn Y1, Y2 being supplied to a textile machine is led over a pair of spaced hooks 24 on a support member 22 and is contacted between the hooks by a pivotable member 12 when in an inoperative position (shown in broken lines). In the ... | 09/16/1980 |
| 4000550 | Apparatus for cutting knots and slubs out of continuous yarn lengths Apparatus is disclosed which is useful for severing a continuous length of yarn or monofilament containing knots or slubs, to prevent their takeup into yarn or monofilament processing machinery. The apparatus is advantageous in that it is of simple constr... | 01/04/1977 |
