Stranders, Roelof

Oberengstringen

Trademarks, designs and patents

Bandkassette

Swiss patent · CH674429 · Inventor

Deleted
Audiokassette

Swiss patent · CH675172 · Inventor

Deleted
Magnetbandkassette

Swiss patent · CH672557 · Inventor

Deleted
Träger für eine stielfreie, kaubare Zahnpflegevorrichtung

Swiss patent · CH669327 · Inventor

Deleted