Marcel J. Bertrand

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Grivegnee-Liege, BE

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Patents Grantslast 30 patents

Information Patent Grant
Radial tire with bead reinforcing elements
- Patent number 4,212,340
- Issue date Jul 15, 1980
- Sjirk van der Burg
- B60 - VEHICLES IN GENERAL
Information Patent Grant
Radial tire with bead reinforcing elements
- Patent number 4,074,743
- Issue date Feb 21, 1978
- Uniroyal, A.G.
- Sjirk van der Burg
- B60 - VEHICLES IN GENERAL
Information Patent Grant
Pneumatic tire
- Patent number 4,062,393
- Issue date Dec 13, 1977
- Uniroyal A.G.
- Marcel J. Bertrand
- B60 - VEHICLES IN GENERAL