Winfried Gelewski

Goldach

Trademarks, designs and patents

Abgaskondensator

Swiss patent · CH684881 · Holder, Inventor

Deleted
Rauchgasführung an einem Heizkessel

Swiss patent · CH683867 · Holder, Inventor

Deleted
Heizungsanlage

European patent · EP0379469 · Holder

Deleted
Heizungsanlage

Swiss patent · CH678655 · Holder, Inventor

Deleted