Esther Streng

citizen of Kirchberg SG, Neerach

Commercial register

Duco System AG

Member of the board of directors · sole signature · Dielsdorf

Chair of the board of directors · sole signature

until Apr 20, 2016

Managing director · sole signature

until Mar 20, 2013
Streng Swiss AG

Delegate of the board of directors · sole signature · Niederhasli

Delegate of the board of directors · sole signature

until Jan 9, 2020

Member of the board of directors · joint signature by two

until Dec 13, 2006

Trademarks, designs and patents

Modulare Rahmenkonstruktion, die mehrfach montierbar und demontierbar ist

Swiss patent · CH722128 · Inventor

Mar 6, 2025
Modulares, mehrfach montierbares und demontierbares Gestellsystem

Swiss patent · CH722127 · Inventor

Mar 6, 2025
Glas-Keramik-Schaber

Swiss design · 129196 · Designer

Deleted
Keramikschaber

Swiss design · 122818 · Designer

Deleted