| |||
| subgroup | |||
| sub-group B of periodic system; odd series periodic system | |||
| coset (of the group) | |||
| secondary section | |||
|
Nebengruppe : 1 phrase in 1 subject |
| Communications | 1 |
| |||
| subgroup | |||
| sub-group B of periodic system; odd series periodic system | |||
| coset (of the group) | |||
| secondary section | |||
|
Nebengruppe : 1 phrase in 1 subject |
| Communications | 1 |