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| Type | Company |
| Location | Chelmsford (United Kingdom) |
| Founding | 1900 |
| Industry | Electrical Industry |
| Parent organization | Marconi’s Wireless Telegraph Company Ltd. |
| Holdings | Newspaper clippings: 1912…1943, 1961-1970 Annual reports: 1912,1913,1930-1932 |
| Signature | A22 M 113 |
| includes | The Marconi International Marine Co Ltd (Chelmsford/Essex) |
| URI | https://pm20.zbw.eu/folder/co/068708 |
| ID | co/068708 |