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| Type | Company |
| Location | Zurich (Zurich (Canton) ) |
| Industry | Information Services |
| Holdings | Annual reports: 1911-1919/20, 1921/22-1923/24, 1925/26, 1927/28-1929/30, 1931-1934, 1936-1942 |
| Signature | A34 A 18 |
| URI | https://pm20.zbw.eu/folder/co/047673 |
| ID | co/047673 |