US Patent 7143532 Marine backhoe dredge
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Patent Inventor Names
Richard Michael Lowry0
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Patent abstract
A marine backhoe dredge having a counterbalancing system that increases the hoisting capacity and hoisting speed of the backhoe. The device includes a backhoe mounted on a vessel and a counterbalancing system that includes an adjustable support structure, one or more cables operatively associated with the support structure and backhoe, and connected to a counterbalance such as a counterweight or a winch.
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US Patent 07143532 Marine backhoe dredge US Patent 7143532 Marine backhoe dredge
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Patent Number
07143532
Patent Number
7143532
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US Patent 07143532 Marine backhoe dredge
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Patent jurisdiction
Patent number
07143532
Date of patent
December 5, 2006
Patent application number
10760096
Date Filed
January 15, 2004
Patent primary examiner
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