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Ball tension device
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Patent number 5,318,233
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Issue date Jun 7, 1994
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Otto Zollinger
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D04 - BRAIDING LACE-MAKING KNITTING TRIMMINGS NON-WOVEN FABRICS
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Yarn tensioning device
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Patent number 4,824,043
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Issue date Apr 25, 1989
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Otto Zollinger, Inc.
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Otto Zollinger
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B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
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Yarn tension control device
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Patent number 4,605,182
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Issue date Aug 12, 1986
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Otto Zollinger, Inc.
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Otto Zollinger
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B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
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Yarn tensioning device
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Patent number 4,005,833
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Issue date Feb 1, 1977
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Otto Zollinger
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B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL