RELAY LOUDSPEAKER
- PART OF:
- Drawings R - Z
- Made:
- 1972-01-13-1972-03-20
A folder containing drawings relating to a relay loudspeaker.
Details
- Extent:
-
240
360
5
- Identifier:
- STAN3/06/15
- Access:
- Open Access
- ?:
- Copies may be supplied in accordance with current copyright legislation and Science Museum Group terms and conditions