For Geppl there are 3 on Yasni with different names.
Among the most common last names on Yasni Geppl is on position 4524.
It would be possible that there is a reference to "gin". This is a mostly driven by animals prime mover. Animals go in a circle and bring a turning in transition. Such machines were used in Austria until about 70 years. In the East (Egypt) there it today. In Baden -Würtemberg the term is old Geppl for an old, worthless bike verwendet.Aus southern Germany some "Geppl's" in the centuries-ver last immigrated.