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Exhauster diffuser discharge valve
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Patent number 6,494,151
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Issue date Dec 17, 2002
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Sure Alloy Steel Corporation
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Rickey E. Wark
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F23 - COMBUSTION APPARATUS COMBUSTION PROCESSES
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Damage-resistant deflector vane
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Patent number 6,409,108
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Issue date Jun 25, 2002
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Sure Alloy Steel Corporation
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Rickey E. Wark
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B02 - CRUSHING, PULVERISING, OR DISINTEGRATING PREPARATORY TREATMENT OF GRAIN...
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Coal mill exhauster fan
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Patent number 6,004,097
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Issue date Dec 21, 1999
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Sure Alloy Steel Corp.
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Rickey E. Wark
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F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
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Classifier vane for coal mills
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Patent number 5,957,300
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Issue date Sep 28, 1999
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Sure Alloy Steel Corporation
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John Anthony Nardi
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B07 - SEPARATING SOLIDS FROM SOLIDS SORTING
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Exhauster inlet venturi
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Patent number 5,363,776
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Issue date Nov 15, 1994
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Sure Alloy Steel Corporation
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Rickey E. Wark
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F23 - COMBUSTION APPARATUS COMBUSTION PROCESSES
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Replaceable insert burner nozzle
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Patent number 5,215,259
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Issue date Jun 1, 1993
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Sure Alloy Steel Corporation
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Rickey E. Wark
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F23 - COMBUSTION APPARATUS COMBUSTION PROCESSES
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Rotating throat for coal pulverizer
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Patent number 4,907,751
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Issue date Mar 13, 1990
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Sure Alloy Steel
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Rickey E. Wark
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B02 - CRUSHING, PULVERISING, OR DISINTEGRATING PREPARATORY TREATMENT OF GRAIN...