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| Type | Company |
| Location | Krefeld (North Rhine-Westphalia) |
| Industry | Energy and Water Industries, General |
| Holdings | Newspaper clippings: 1967-1999 |
| includes | Stadtwerke Krefeld AG; SWK (Städtische Werke Krefeld) |
| URI | https://pm20.zbw.eu/folder/co/021172 |
| ID | co/021172 |