BE437297A
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WO1982002167A1
(fr )
1982-07-08
Procede de fabrication de traverses de chemin de fer en beton et elements employes a sa mise en oeuvre
FR2695662A1
(fr )
1994-03-18
Encastrement de la pointe mobile dans le berceau d'un cÓoeur de croisement incorporé dans les longs rails soudés et procédé de réalisation d'un tel encastrement.
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BE409187A
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US1048598A
(en )
1912-12-31
Railway-tie.
BE349602A
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BE499242A
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BE401615A
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BE419298A
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CH85903A
(fr )
1920-07-16
Ancrage pour noyaux de fonderie.
BE482370A
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CH208489A
(fr )
1940-02-15
Rail.
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BE542569A
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