Devices designed by Soviet scientists and their colleagues fro m Poland, the German Democratic Republic and Czechoslovakia to ensure occupational safety in coal mines.
- Categories: Politics, Economy, Business & Finance, Science & Technology
- Location: Moscow, Russia
- Event date: 26.08.1976
- Date published: 27.04.2021
- Author: N. Kuznetsov
- Credit: Sputnik
- Original: J76-2309, 35 mm film
- Media: JPEG, 3543x5370px, 6.7Mb