| Identifier | Title | Date | Level of description | Other information | |
|---|---|---|---|---|---|
| GFA 17/471453 | Bohrvorrichtung aus Magnet Guss | 1947 | Item: 1 photo | prolonged period of protection | |
| GFA 17/471454 | Bohrvorrichtung aus Magnet Guss | 1947 | Item: 1 photo | prolonged period of protection | |
| GFA 17/520324 | Drehen von Leichtmetall | 1952 | Item: 1 photo | prolonged period of protection | |
| GFA 17/520325 | Drehen von Leichtmetall | 1952 | Item: 1 photo | prolonged period of protection |
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