| Patent: | DE 578427 |
| Title: | Sperrvorrichtung für Rechenmaschinen mit Antriebstrommel |
| Date: | 14.06.1933 |
| Place: | Oakland, Californien, USA |
| Country: | Germany |
| Person: | |
| Company: | Marchant (P) |
| Internal Links: | |
| Keywords: | |
| Link to the patent office: (without guarantee) |  DE578427 (http://v3.espacenet.com/textdoc?DB=EPODOC&F=0&IDX=DE578427) |
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