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