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Collection
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Maker
- The Siemens and General Electric Railway Signal Company Limited 17
- Siemens Brothers and Company Limited 9
- Siemens 5
- Siemens APP.U. Maschinenfabrik GmbH 3
- Siemens-Schuckert 2
- Associated Telegraph Manufacturers 1
- Ericsson Telephone Limited 1
- Philips New Zealand Limited 1
- Siemens Aktiengesellschaft 1
- Siemens Elliot 1
Classification
- Tools & Equipment for Science & Technology 25
- Electrical & Magnetic T&E 22
- Electrical System Components 16
- Relay 15
- Tools & Equipment for Communication 9
- Electrical & Magnetic Measurement Devices 6
- Instrument, Electrical 6
- Telecommunication T&E 5
- Telecommunication Devices 4
- Bulb, Light 2
- Communication Artefacts 2
- Device, Visual Signaling 2
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