Gerard Testart

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Andresy, FR

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Patents Grantslast 30 patents

Information Patent Grant
Process for producing a crossing frog with a moving point
- Patent number 5,133,522
- Issue date Jul 28, 1992
- Cogifer (CIE Generale d'Installations Ferroviares), S.A.
- Gerard Testart
- E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
Information Patent Grant
Crossing frog with a moving point
- Patent number 5,082,214
- Issue date Jan 21, 1992
- Cogifer (Cie Generale d'Installations Ferroviaires), S.A.
- Gerard Testart
- E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
Information Patent Grant
Process for producing a crossing frog with a moving point
- Patent number 5,042,755
- Issue date Aug 27, 1991
- Cogifer (Cie Generale d'Installations Ferroviaires)
- Gerard Testart
- E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES