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Patent:USD308884
| Patent: | US D308884 |
| Title: | Growth Ruler or the like |
| Date: | 26.06.1990 |
| Place: | |
| Country: | USA |
| Person: | M. Michaelson |
| Company: | |
| Internal Links: | |
| Keywords: | |
| Link to the patent office: (without guarantee) |  USD308884 (espacenet), USD308884 (uspto) |
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