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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 |
| 4533604 | Pressure-sensitive and conductive rubber This invention relates to a pressure-sensitive and conductive rubber, wherein an involatile or volatile liquid organic substance is impregnated with and swelled in a composite conductive rubber obtained by adding a conductive filler such as a carbon black... | 08/06/1985 |
| 4386175 | Resin composition This invention relates to a resin composition characterized in that a conventional chemical etching treatment is removed and instead of it a surface of the resin composition is plated with a metallic layer having a strong adhesive force, by means of a sur... | 05/31/1983 |
