Profs. Ayrton and Perry standard inductance
- Made:
- Westminster
- maker:
- Nalder Brothers and Company
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Science Museum Group
© The Board of Trustees of the Science Museum
Profs. Ayrton and Perry standard inductance, no. 6254, by Nalder Brothers and Co. London
Details
- Category:
- Telecommunications
- Object Number:
- 1989-973
- type:
- standards
- credit:
- Muirhead Vactric Components Limited
