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Pipe-end protector
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Patent number 5,244,015
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Issue date Sep 14, 1993
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Drilltec Patents & Technologies Co.
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Wilfried Dreyfuss
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B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
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Pipe-end protector
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Patent number 5,195,562
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Issue date Mar 23, 1993
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Drilltec Patents & Technologies Co.
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Wilfried Dreyfuss
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B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
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Pipe-end protector
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Patent number 4,957,141
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Issue date Sep 18, 1990
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Dreyfuss; Wilfried
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Wilfried Dreyfuss
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B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
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Protective device for pipes
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Patent number 4,438,783
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Issue date Mar 27, 1984
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Dreyfuss; Wilfried
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Wilfried Dreyfuss
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B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL