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US3067947A
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Fastener of a rail on a support by means of a resilient clamp
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ES249224A3
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Closure device for lanes (Machine-translation by Google Translate, not legally binding)
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IE21291L
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Rail fastening spikes.
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US2844326A
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Resilient rail spike with a resilient clip
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DE1011446B
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Rail fastening on concrete sleepers using sleeve-like dowels made of plastic
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GB757959A
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Concrete sleeper with plugged holes
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IE20826L
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Rail spikes.
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US2797876A
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Rail spike
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ES212342A1
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A machine for manufacturing scarpieces for rails section (Machine-translation by Google Translate, not legally binding)
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DE966746C
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Resilient two-shank rail nail
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