P.V.B.A. Betonkonstruktie V.D. Hemiksem

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Hemiksem, BE

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Information Patent Grant
Method for manufacturing concrete railway sleepers
- Patent number 4,737,333
- Issue date Apr 12, 1988
- P.V.B.A. Betonkonstruktie V.D. Hemiksem
- Frans H. Matthynssens
- B28 - WORKING CEMENT, CLAY, OR STONE

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