Christophe Geoffroy

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92200 Neuilly/Seine, FR

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Patents Grantslast 30 patents

Information Patent Grant
Piston and multilayer piston ring set
- Patent number 4,986,168
- Issue date Jan 22, 1991
- Robert Geffroy
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...