Stamm, Hans Peter (-Schilling) dipl. El'ing. ETH Zollerstrasse 40, 8703 Erlenbach ZH 044 915 36 01 * 044 915 36 01 *
Stamm, Hans Peter (-Schilling) el. insch. dipl. SPF Zollerstrasse 40, 8703 Erlenbach ZH 081 921 47 64 * 081 921 47 64 *