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Water tank
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Patent number 6,739,469
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Issue date May 25, 2004
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Dong Gyun Kim
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B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
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3352461
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Patent number 3,352,461
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Issue date Nov 14, 1967
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E03 - WATER SUPPLY SEWERAGE
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3348572
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Patent number 3,348,572
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Issue date Oct 24, 1967
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E03 - WATER SUPPLY SEWERAGE
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1635477
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Patent number 1,635,477
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Issue date Jul 12, 1927
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E03 - WATER SUPPLY SEWERAGE
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1487426
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Patent number 1,487,426
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Issue date Mar 18, 1924
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E03 - WATER SUPPLY SEWERAGE
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1370661
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Patent number 1,370,661
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Issue date Mar 8, 1921
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E03 - WATER SUPPLY SEWERAGE