4. Railways: surface track
  5. Roadbed
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Plate and method for laying railway level crossings

Railways: surface track – Roadbed – Street crossing
Patent

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Polymer embedment of rails

Railways: surface track – Roadbed
Reexamination Certificate

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Precast concrete railroad crossing and method for making

Railways: surface track – Roadbed – Street crossing
Patent

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Precast railway crossing slab

Railways: surface track – Roadbed – Highway track
Patent

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Precast reinforced concrete railway crossing slab

Railways: surface track – Roadbed – Street crossing
Patent

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Precast reinforced concrete railway crossing slab

Railways: surface track – Roadbed – Street crossing
Patent

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Prefabricated embedded railway track system

Railways: surface track – Roadbed – Street crossing
Patent

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Prefabricated embedded railway track system

Railways: surface track – Roadbed – Street crossing
Patent

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Prefabricated embedded railway track system with removable...

Railways: surface track – Roadbed – Street crossing
Reexamination Certificate

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Prefabricated railway track system

Railways: surface track – Roadbed – Street crossing
Reexamination Certificate

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Process for supporting a railway track installation

Railways: surface track – Roadbed
Patent

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Quick release railroad highway crossing

Railways: surface track – Roadbed – Street crossing
Patent

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Rail seal

Railways: surface track – Roadbed – Street crossing
Patent

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Rail support

Railways: surface track – Roadbed
Reexamination Certificate

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Rail system

Railways: surface track – Roadbed
Reexamination Certificate

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Rail track crossing

Railways: surface track – Roadbed – Street crossing
Reexamination Certificate

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Rail track surface structure

Railways: surface track – Roadbed
Patent

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Rail track surface structure

Railways: surface track – Roadbed – Street crossing
Reexamination Certificate

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Railroad crossing and process for fabrication thereof

Railways: surface track – Roadbed – Street crossing
Patent

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Railroad crossing flangeway liner

Railways: surface track – Roadbed – Street crossing
Reexamination Certificate

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