Hi Klaus,
yes, this model of lamp was patented by Richard Staub, same person that owned Zurich Sporthaus (skis, eispickels, ...) in the fist 1900s.
You can check the lamp's patent (dated 27/07/1904) just here:
https://worldwide.espacenet.co…727&CC=FR&NR=341004A&KC=A
best regards,
Jordi Pons (Barcelona)
