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Rail car buffer
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Patent number 6,047,839
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Issue date Apr 11, 2000
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Russell J. Huggins
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F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
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Rail car buffer
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Patent number 5,927,523
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Issue date Jul 27, 1999
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Keystone Industries, Inc.
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Russell J. Huggins
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F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
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Rail car buffer and method
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Patent number 5,908,123
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Issue date Jun 1, 1999
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Keystone Industries, Inc.
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Russell J. Huggins
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F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...