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Patrick Quinn
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Raleigh, NC, US
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last 30 patents
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Patent Grant
Hydraulic ride control system
Patent number
6,357,230
Issue date
Mar 19, 2002
Caterpillar Inc.
Michael A. A'Hearn
E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
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Patent Grant
Variable rate ride control
Patent number
6,167,701
Issue date
Jan 2, 2001
Caterpillar Inc.
Andrew Hatcher
E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING