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Patent:ES103923
| Patent: | ES 103923 |
| Title: | Una máquina calculadora logarítmica para nervuras y baldosas de hormigón armado |
| Date: | 10.08.1927 |
| Place: | Genua, Italien |
| Country: | Spain |
| Person: | Fiacchi, Francesco (P) |
| Company: | |
| Internal Links: | |
| Keywords: | |
| Link to the patent office: (without guarantee) |  ES103923 |
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