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3356250
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Patent number 3,356,250
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Issue date Dec 5, 1967
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B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
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3347407
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Patent number 3,347,407
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Issue date Oct 17, 1967
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B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
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3275184
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Patent number 3,275,184
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Issue date Sep 27, 1966
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B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
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2969166
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Patent number 2,969,166
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Issue date Jan 24, 1961
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B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL