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Hydraulic load binder
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Patent number 4,993,687
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Issue date Feb 19, 1991
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The Crosby Group
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Edward J. Crook
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B60 - VEHICLES IN GENERAL
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Wedge socket
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Patent number 4,845,814
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Issue date Jul 11, 1989
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Crosby Group, Inc.
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Edward J. Crook
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F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
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Socket for structural strand
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Patent number 4,464,812
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Issue date Aug 14, 1984
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The Crosby Group, Inc.
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Edward J. Crook
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F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
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Multiple position hook assembly
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Patent number 4,174,132
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Issue date Nov 13, 1979
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American Hoist & Derrick Company
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Edward J. Crook
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B66 - HOISTING LIFTING HAULING
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Load indicating apparatus
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Patent number 4,102,295
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Issue date Jul 25, 1978
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American Hoist & Derrick Company
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Edward J. Crook
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B66 - HOISTING LIFTING HAULING
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Chain to wire rope connector
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Patent number 4,021,130
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Issue date May 3, 1977
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American Hoist and Derrick Company
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Edward J. Crook
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F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...