Ferrograph 500 echo sounder transmitter
Ferrograph 500 echo sounder transmitter and recorder units each 30x20x15 cm
Details
- Category:
- Oceanography
- Object Number:
- 1985-1408
- type:
- transmitter
- credit:
- Seismograph Service (England) Ltd.
Ferrograph 500 echo sounder transmitter and recorder units each 30x20x15 cm