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Concrete cross sleeper system
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Patent number 4,802,623
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Issue date Feb 7, 1989
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Stahlwerke Peine-Salzgitter A.G.
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Gunter Fasterding
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E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
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Railway switch
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Patent number 4,756,476
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Issue date Jul 12, 1988
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Stahlwerke Peine-Salzgitter AG
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Gunter Fasterding
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E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES