US Patent 7337826 Railway car coupler knuckle having improved bearing surface
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Patent Inventor Names
Joseph L. Gagliardino0
Peter S. Mautino0
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Patent abstract
Knuckle coupler castings and methods for casting the knuckle coupler castings, where the knuckle coupler castings having enhanced bearing surfaces which may include a vertically flat surface.
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US Patent 07337826 Railway car coupler knuckle having improved bearing surface US Patent 7337826 Railway car coupler knuckle having improved bearing surface
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Patent Number
07337826
Patent Number
7337826
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US Patent 07337826 Railway car coupler knuckle having improved bearing surface
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Is a
Patent jurisdiction
Patent number
07337826
Date of patent
March 4, 2008
Patent application number
11331723
Date Filed
January 13, 2006
Patent primary examiner
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