Four Pneumoliegen (Pneumo-beds) were electromagnetically connected to the floor of the control room of the newly built underwater base.
| German | Pneumoliegen |
| English | Pneumoliegen |
| Category | technology |
Four Pneumoliegen (Pneumo-beds) were electromagnetically connected to the floor of the control room of the newly built underwater base.
| German | Pneumoliegen |
| English | Pneumoliegen |
| Category | technology |