US2013089002A1
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Unifying connected dominating set using localized two hop information with a flexible dominating factor
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Steam boiler
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Spring suspension for railway trucks and the like
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Manufacture of clad metal
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Turbine drive for locomotives
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Freight car
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Railway car truck
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US2005983A
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Railway car truck
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Supporting and retaining means for rails
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Method of making journal boxes
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Rail retaining key
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Rail retaining key
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US1873097A
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Rail joint
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US1860332A
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Rail and support for the same
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US1952573A
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Rail joint
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US1910274A
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Journal box
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Freight handling system
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Ramp-rail construction
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Container handling system and apparatus
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US1792055A
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Container-handling system
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