Hoelterhoff, Jens
Main board
| Organisation | Position | From | Until | ||
|---|---|---|---|---|---|
| 1 | INTERNATIONAL SOCIETY FOR TRENCHLESS TECHNOLOGY(THE) | DirDirector | 2008-05-30 | 2012-08-01 | |
| DirDirector | 2017-05-04 | 2017-10-17 |
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