US5315934A
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Constant contact side bearings with spring biased sliding wedges
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US5174218A
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Self-steering trucks with side bearings supporting the entire weight of the vehicle
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US5000097A
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Self-steering railway truck
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US4938152A
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Flexible railway car truck
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US4889054A
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Steering arms for self-steering trucks and truck retrofitting method
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US4781124A
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Articulated trucks
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US4706571A
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Self-steering trucks
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US4655143A
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Articulated trucks
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US4455946A
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Articulated trucks
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CA1065190A
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Articulated trucks
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US4131069A
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Articulated railway car trucks
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CA1004543A
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Vehicle running-gear, especially useful in railway trucks
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