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Jürg Schaffer
Technical draughtsman, Measuring technician
Building physics/architectural acoustics, environmental noise, tyre-road noise
![Jürg Schaffer](https://thumbor.itds.ch/yvErbm8QZGS3-ZO8d9X3oXc9NNA=/500x500/filters:quality(80)/www.gundp.ch/file/1770/2018_Dummy.jpg)