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3779405
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Patent number 3,779,405
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Issue date Dec 18, 1973
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B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
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2853199
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Patent number 2,853,199
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Issue date Sep 23, 1958
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B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
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2850185
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Patent number 2,850,185
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Issue date Sep 2, 1958
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B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
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2774493
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Patent number 2,774,493
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Issue date Dec 18, 1956
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B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
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1420431
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Patent number 1,420,431
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Issue date Jun 20, 1922
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B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
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1352608
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Patent number 1,352,608
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Issue date Sep 14, 1920
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B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL