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Collection
Images attached
Collection type
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Maker
- Ferranti Ltd. 6
- The General Electric Company Limited 4
- Venner Time Switches Limited 4
- Chamberlain and Hookham Limited 3
- Siemens Brothers and Company Limited 3
- Telegraph Works 3
- Weston Electrical Instrument Corporation 3
- Allum Electrical Company Limited 2
- Cambridge Instrument Company Limited 2
- Ferranti 2
- General Electric Corporation 2
- Ghielmetti Company 2
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