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Repetitive stamped valve guard
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Patent number 5,988,200
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Issue date Nov 23, 1999
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Custom Metalcraft, Inc.
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Arthur D. Rude
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F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
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Flat bottom tank
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Patent number 5,718,351
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Issue date Feb 17, 1998
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Custom Metalcraft, Inc.
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Arthur D. Rude
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B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
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Sloped bottom tank
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Patent number 5,566,848
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Issue date Oct 22, 1996
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Custom Metalcraft, Inc.
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Arthur D. Rude
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B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
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Method for forming a sloped bottom tank
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Patent number 5,505,070
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Issue date Apr 9, 1996
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Custom Metalcraft, Inc.
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Arthur D. Rude
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B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...