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Lord Kelvin, British mathematician and physicist ; 1897
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| Number | Title | Issue Date |
| 5154721 | Apparatus for fixing identification tags on animals Apparatus for fixing identification tags on animals, composed of two symmetric parallel sections, each of which has, in its central part, a gap, both sections being connected to each other by means of rectangular metal strips that have the same form, over... | 10/13/1992 |