Letters, 1922 Nov 1 to 1938 Nov 28, J.A. Fleming
- Made:
- 1922-1938
- maker:
- John Ambrose Fleming
[Letters, 1922 Nov 1 to 1938 Nov 28] / J.A. Fleming. [Letters from the Science Museum accession file (ScM 678) regarding examples of thermionic valves, cymometer and model of Sturgeon's first electro-magnet given by Fleming to the museum. Includes some correspondence on the Dewar vacuum flask. 19 items]
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