Hans Block (Q56517452)
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mining and geology engineer (Bolivian ore mining)
- Block, Hans
| Language | Label | Description | Also known as |
|---|---|---|---|
| English | Hans Block |
mining and geology engineer (Bolivian ore mining) |
|
| Language | Label | Description | Also known as |
|---|---|---|---|
| English | Hans Block |
mining and geology engineer (Bolivian ore mining) |
|