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Marius H. Lubbers
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Wassenaar, NL
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last 30 patents
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Patent Grant
Concrete sleeper with the fastening housing
Patent number
4,349,150
Issue date
Sep 14, 1982
Everts & Van der Weyden Exploitatiemaatschappij
Marius H. Lubbers
B28 - WORKING CEMENT, CLAY, OR STONE
Information
Patent Grant
Method of manufacturing a resilient, single or double C-shaped rail...
Patent number
4,281,529
Issue date
Aug 4, 1981
Everts & van der Weyden Exploitatiemaatschappij Ewem N.V.
Marius H. Lubbers
B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
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Patent Grant
Holder for a guiding structure
Patent number
4,267,970
Issue date
May 19, 1981
Everts & Van der Weyden Exploitatiemaatschappij Ewem/N.V.
Marius H. Lubbers
E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES