gbm-Gesellschaft für Baugeologie u. Meßtechnik mbH |
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| Mittelhäuser Str. 28 99089 Erfurt 0361 77909-0 |
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geoinform GmbH |
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| Blumenstraße 70 Haus 3 99092 Erfurt 0361 6010731 |
Geological Inspections Erfurtcity map |
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