Ressorts Du Nord S. A.

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Patents Grantslast 30 patents

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Elastically yieldable rail fastener and rail fixing device includin...
- Patent number 4,088,267
- Issue date May 9, 1978
- Ressorts Du Nord S. A.
- Michel Duchemin
- E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
Information Patent Grant
Device for elastically fastening a rail on its supports
- Patent number 4,054,247
- Issue date Oct 18, 1977
- Ressorts Du Nord S. A.
- Michel Duchemin
- E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
Information Patent Grant
System for fastening a rail to its support
- Patent number 4,026,466
- Issue date May 31, 1977
- Ressorts Du Nord S. A.
- Michel Duchemin
- E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
Information Patent Grant
Elastically yieldable rail fastener
- Patent number 4,003,517
- Issue date Jan 18, 1977
- Ressorts Du Nord S. A.
- Michel Duchemin
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
Information Patent Grant
Vehicle suspension spring
- Patent number 3,975,005
- Issue date Aug 17, 1976
- Ressorts Du Nord S. A.
- Michel Leon Duchemin
- B60 - VEHICLES IN GENERAL
Information Patent Grant
Leaf spring
- Patent number 3,945,625
- Issue date Mar 23, 1976
- Ressorts Du Nord S. A.
- Michel Duchemin
- F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...

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