Rollkugel
Rollkugel or Rollkugelsteuerung may refer to:
- Rollkugel (trackball device), a Telefunken computer trackball device developed in the mid 1960s
- Rollkugel (mouse device), a Telefunken computer ball mouse developed in 1968
See also[edit]
This disambiguation page lists articles associated with the title Rollkugel.
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