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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 |
| 5973383 | High temperature ZrN and HfN IR scene projector pixels A structure and method of making resistive emitting members which exhibit high resistivity while at the same time providing high temperature operation significantly above that known in the art. Specifically the use of nitrides of Group IVB transition meta... | 10/26/1999 |
| 5034720 | Current control apparatus for insertion into battery powered devices Small easily removable insert designed for placement in the battery compartment of a battery powered device (becoming part of the circuit of the device when in place) which includes a current/voltage control means and may have sidewalls and dimensions whi... | 07/23/1991 |
| 4729809 | Anisotropically conductive adhesive composition An anisotropically conductive adhesive composition (10) for use in electrically connecting at least one conductive area (14) on one substrate (12) with at least one conductive area (20) on a second substrate (18) is disclosed. The composition (10) is comp... | 03/08/1988 |
| 4199637 | Anisotropically pressure-sensitive electroconductive composite sheets and method for the preparation thereof Anisotropically pressure-sensitive electroconductive composite sheets are provided which have a very low electric conductive resistance in the direction perpendicular to the plane of the sheet when compressed with an adequate pressure in the direction but... | 04/22/1980 |
