portable block derail

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Derail — Not to be confused with Derailment. Derail device installed at an industry, complete with Blue Flag protection A derail or derailer is a device used to prevent fouling of a track by unauthorized movements of trains or unattended rolling stock. It … Wikipedia
Glossary of rail terminology — Rail transport Operations Track Maintenance High speed Gauge Stations … Wikipedia
American Broadcasting Company — Infobox Network network name = American Broadcasting Company (ABC) network country = United States network type = Broadcast radio network and television network available = United States, Canada, Mexico and the Caribbean. slogan = Start Here… … Wikipedia
Landing at Saidor — Part of World War II, Pacific War Troops of t … Wikipedia

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