Electrically maintained tuning fork type 4B
Electrically maintained tuning fork type 4B, no. 127009, by Muirhead
Details
- Category:
- Telecommunications
- Object Number:
- 1989-1019
- type:
- contact driven
- credit:
- Muirhead Vactric Components Limited
Electrically maintained tuning fork type 4B, no. 127009, by Muirhead