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Siphon flush apparatus
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Patent number 6,473,912
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Issue date Nov 5, 2002
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Jose-Jaime Preciado-Villanueva
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E03 - WATER SUPPLY SEWERAGE
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Syphonic flush toilet
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Patent number 4,965,892
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Issue date Oct 30, 1990
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James B. McDonough
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E03 - WATER SUPPLY SEWERAGE
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3546714
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Patent number 3,546,714
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Issue date Dec 15, 1970
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E03 - WATER SUPPLY SEWERAGE
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3094706
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Patent number 3,094,706
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Issue date Jun 25, 1963
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E03 - WATER SUPPLY SEWERAGE
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2899686
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Patent number 2,899,686
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Issue date Aug 18, 1959
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E03 - WATER SUPPLY SEWERAGE
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2779027
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Patent number 2,779,027
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Issue date Jan 29, 1957
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E03 - WATER SUPPLY SEWERAGE
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2744257
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Patent number 2,744,257
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Issue date May 8, 1956
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E03 - WATER SUPPLY SEWERAGE
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2651050
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Patent number 2,651,050
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Issue date Sep 8, 1953
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E03 - WATER SUPPLY SEWERAGE
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2593061
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Patent number 2,593,061
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Issue date Apr 15, 1952
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E03 - WATER SUPPLY SEWERAGE
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2580898
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Patent number 2,580,898
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Issue date Jan 1, 1952
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E03 - WATER SUPPLY SEWERAGE
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1705367
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Patent number 1,705,367
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Issue date Mar 12, 1929
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E03 - WATER SUPPLY SEWERAGE
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1670370
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Patent number 1,670,370
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Issue date May 22, 1928
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E03 - WATER SUPPLY SEWERAGE
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1667750
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Patent number 1,667,750
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Issue date May 1, 1928
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E03 - WATER SUPPLY SEWERAGE
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1593382
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Patent number 1,593,382
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Issue date Jul 20, 1926
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E03 - WATER SUPPLY SEWERAGE
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1562514
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Patent number 1,562,514
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Issue date Nov 24, 1925
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E03 - WATER SUPPLY SEWERAGE
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1540890
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Patent number 1,540,890
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Issue date Jun 9, 1925
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E03 - WATER SUPPLY SEWERAGE
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1527301
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Patent number 1,527,301
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Issue date Feb 24, 1925
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E03 - WATER SUPPLY SEWERAGE
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1382028
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Patent number 1,382,028
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Issue date Jun 21, 1921
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E03 - WATER SUPPLY SEWERAGE
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1382027
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Patent number 1,382,027
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Issue date Jun 21, 1921
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E03 - WATER SUPPLY SEWERAGE
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1353230
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Patent number 1,353,230
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Issue date Sep 21, 1920
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E03 - WATER SUPPLY SEWERAGE
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1299692
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Patent number 1,299,692
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Issue date Apr 8, 1919
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E03 - WATER SUPPLY SEWERAGE
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1225340
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Patent number 1,225,340
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Issue date May 8, 1917
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E03 - WATER SUPPLY SEWERAGE
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1186414
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Patent number 1,186,414
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Issue date Jun 6, 1916
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E03 - WATER SUPPLY SEWERAGE
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1177956
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Patent number 1,177,956
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Issue date Apr 4, 1916
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E03 - WATER SUPPLY SEWERAGE
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1157667
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Patent number 1,157,667
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Issue date Oct 26, 1915
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E03 - WATER SUPPLY SEWERAGE
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1152810
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Patent number 1,152,810
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Issue date Sep 7, 1915
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E03 - WATER SUPPLY SEWERAGE
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1152811
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Patent number 1,152,811
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Issue date Sep 7, 1915
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E03 - WATER SUPPLY SEWERAGE
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1149568
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Patent number 1,149,568
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Issue date Aug 10, 1915
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E03 - WATER SUPPLY SEWERAGE
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1134126
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Patent number 1,134,126
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Issue date Apr 6, 1915
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E03 - WATER SUPPLY SEWERAGE
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1117617
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Patent number 1,117,617
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Issue date Nov 17, 1914
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E03 - WATER SUPPLY SEWERAGE