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| Type | Company |
| Location | Bern (Berne (Canton)) |
| Industry | Telecommunications |
| Holdings | Newspaper clippings: 1923…1943, 1971-1994 Annual reports: 1926-1933,1950-1969,1971-1987 |
| Signature | A34 R 2 |
| includes | AG für drahtlose Telegraphie & Telephonie; SA de Telegrapgie et Telephonie sans Fils; Telegraphie et Telephonie Sans Fils |
| URI | https://pm20.zbw.eu/folder/co/065897 |
| ID | co/065897 |