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Thread protector
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Patent number 6,367,508
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Issue date Apr 9, 2002
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Drilltec Patents & Technologies Company, Inc.
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Darrell R. Richards
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B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
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Connector assembly
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Patent number 6,261,037
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Issue date Jul 17, 2001
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Drilltec Patents & Technologies Company, Inc.
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Darrell R. Richards
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B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
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Thread protector
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Patent number 6,196,270
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Issue date Mar 6, 2001
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Drilltec Patents & Technologies Company, Inc.
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Darrell R. Richards
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B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL