Category:Jones Counter
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device fitted to a bicycle to count revolutions of the wheels  | |||||
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Media in category "Jones Counter"
The following 2 files are in this category, out of 2 total.
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Jones-Counter- Einsatz und Anwendung am Fahrrad zur Streckenvermessung.jpg 2,156 × 1,767; 910 KB
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Jonescounters.jpg 826 × 1,022; 102 KB
