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Material transport method
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Patent number 6,889,813
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Issue date May 10, 2005
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Amkor Technology, Inc.
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Harold L. Trammell
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B66 - HOISTING LIFTING HAULING
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Assembly for transporting material
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Patent number 6,695,120
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Issue date Feb 24, 2004
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Amkor Technology, Inc.
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Harold L. Trammell
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B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
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Gripper assembly
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Patent number 6,530,735
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Issue date Mar 11, 2003
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Amkor Technology, Inc.
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Harold L. Trammell
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H01 - BASIC ELECTRIC ELEMENTS
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