R. Bonnard, P. Bonnard, C. Desclozeaux, and BG Innovations (SARL)

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Information Patent Grant
Gear-shift control bicycles and similar vehicles
- Patent number 4,887,990
- Issue date Dec 19, 1989
- R. Bonnard, P. Bonnard, C. Desclozeaux, and BG Innovations (SARL)
- Rene Bonnard
- G05 - CONTROLLING REGULATING

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