- Letter
- BeskrivelseLetter from T.V. Instruments Ltd, 323 City Road, London to Ambrose Fleming regarding a Ti lamp. 3rd September 1934
- OphavT.V. Instruments Ltd
- Materiale
- Mål
- length: 202 mm
width: 254 mm - Electronic and Electrical Engineering
- ObjektnummerLDUSC-EE-154
- 153
- UCL Science and Engineering Collections
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