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3788448
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Patent number 3,788,448
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Issue date Jan 29, 1974
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B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
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3455344
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Patent number 3,455,344
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Issue date Jul 15, 1969
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B66 - HOISTING LIFTING HAULING
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3306429
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Patent number 3,306,429
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Issue date Feb 28, 1967
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B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
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3266621
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Patent number 3,266,621
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Issue date Aug 16, 1966
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B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
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2890789
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Patent number 2,890,789
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Issue date Jun 16, 1959
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B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
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2336551
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Patent number 2,336,551
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Issue date Dec 14, 1943
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B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
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2086189
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Patent number 2,086,189
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Issue date Jul 6, 1937
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B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
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1902582
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Patent number 1,902,582
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Issue date Mar 21, 1933
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B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
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1884111
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Patent number 1,884,111
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Issue date Oct 25, 1932
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B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL