| |||
| Spiralfeder f; Sprungfeder f | |||
| Wickelfeder f | |||
| gewundene Feder | |||
| Schneckenfeder f; Schraubenfeder f | |||
| |||
| Spiralfedern f | |||
|
spiral spring : 10 phrases in 6 subjects |
| Mechanic engineering | 1 |
| Medical | 3 |
| Metallurgy | 2 |
| Physics | 1 |
| Technology | 2 |
| Weapons and gunsmithing | 1 |