Davies' patent ampere meter
- Made:
- Westminster
Davies' patent ampere meter, no. 17667, by Muirhead and Co. Westminster
Details
- Category:
- Telecommunications
- Object Number:
- 1989-998
- type:
- ampere
- credit:
- Muirhead Vactric Components Limited
Davies' patent ampere meter, no. 17667, by Muirhead and Co. Westminster