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Slab transfer handling system
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Patent number 6,739,826
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Issue date May 25, 2004
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Kvaerner U.S. Inc.
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Donald A. Gessler
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B66 - HOISTING LIFTING HAULING
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Billet grab
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Patent number 4,736,971
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Issue date Apr 12, 1988
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Acme Machine Works, Inc.
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James P. McManus
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B66 - HOISTING LIFTING HAULING
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Positive grip lifting mechanism
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Patent number 4,360,110
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Issue date Nov 23, 1982
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AMCA International Corporation
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Earl H. Sigman
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B66 - HOISTING LIFTING HAULING
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3674302
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Patent number 3,674,302
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Issue date Jul 4, 1972
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B66 - HOISTING LIFTING HAULING
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3536495
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Patent number 3,536,495
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Issue date Oct 27, 1970
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B66 - HOISTING LIFTING HAULING
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3021169
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Patent number 3,021,169
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Issue date Feb 13, 1962
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B66 - HOISTING LIFTING HAULING