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Propeller for Betzold Electronic learning system
by Cosmicos
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This is a propeller for the Betzold electronic learning system:
https://www.betzold.de/prod/89211/
The original propeller ist not available as spare part so I have constructed my own.
https://www.betzold.de/prod/89211/
The original propeller ist not available as spare part so I have constructed my own.
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