Portmann, Albert

Murten

Trademarks, designs and patents

Kippschalter

Swiss patent · CH675174 · Inventor

Deleted
Kippschalter mit Doppelkippfunktion

Swiss patent · CH656974 · Inventor

Deleted
Mehrpoliger Tastschalter

Swiss patent · CH656484 · Inventor

Deleted
Schnappschalter

Swiss patent · CH580862 · Inventor

Deleted