US Patent 7950170 Skewed roller on an excavator
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Patent abstract
In one aspect of the invention, a trenching machine has at least one roller assembly comprising a body rotationally supported by an axle exteriorly mounted to a trenching chain or wheel. At least a portion of the body comprises a substantially conical shape.
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Patent Inventor Names
David R. Hall0
Neil Cannon0
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US Patent 07950170 Skewed roller on an excavator US Patent 7950170 Skewed roller on an excavator
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Patent Number
07950170
Patent Number
7950170
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US Patent 07950170 Skewed roller on an excavator
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Is a
Patent jurisdiction
Patent number
07950170
Date of patent
May 31, 2011
Patent application number
12357570
Date Filed
January 22, 2009
Patent primary examiner
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