Weitzel, Kurt

Lenzburg

Trademarks, designs and patents

Sicherheitsabsperrhahn

Swiss patent · CH658502 · Inventor

Deleted
Schaltvorrichtung für Armaturen

Swiss patent · CH661576 · Inventor

Deleted
Kugelhahn für Gasleitungen

Swiss patent · CH654637 · Inventor

Deleted
Schaltkugel für Hahnen

Swiss patent · CH640326 · Inventor

Deleted