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Patent:USD212058
| Patent: | US D212058 |
| Title: | Calculating Machine |
| Date: | 20.08.1968 |
| Place: | |
| Country: | USA |
| Person: | Boothby |
| Company: | Olympia (P) |
| Internal Links: | |
| Keywords: | |
| Link to the patent office: (without guarantee) |  USD212058 (espacenet), USD212058 (uspto) |
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