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Aircraft toilet flush valve
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Patent number 4,783,859
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Issue date Nov 15, 1988
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Monogram Industries, Inc.
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Mike M. Rozenblatt
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B64 - AIRCRAFT AVIATION COSMONAUTICS
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Urinal device
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Patent number 4,750,219
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Issue date Jun 14, 1988
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Douglas A. Williams
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E03 - WATER SUPPLY SEWERAGE
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Odor trap assembly
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Patent number 4,706,701
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Issue date Nov 17, 1987
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Robert L. Cresswell
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E03 - WATER SUPPLY SEWERAGE
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Flexible plumbing trap
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Patent number 4,516,278
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Issue date May 14, 1985
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Lee T. Lamond
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E03 - WATER SUPPLY SEWERAGE
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3922729
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Patent number 3,922,729
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Issue date Dec 2, 1975
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E03 - WATER SUPPLY SEWERAGE
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3719958
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Patent number 3,719,958
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Issue date Mar 13, 1973
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E03 - WATER SUPPLY SEWERAGE
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3585650
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Patent number 3,585,650
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Issue date Jun 22, 1971
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E03 - WATER SUPPLY SEWERAGE
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3536196
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Patent number 3,536,196
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Issue date Oct 27, 1970
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E03 - WATER SUPPLY SEWERAGE
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3302216
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Patent number 3,302,216
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Issue date Feb 7, 1967
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E03 - WATER SUPPLY SEWERAGE
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2817092
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Patent number 2,817,092
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Issue date Dec 24, 1957
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E03 - WATER SUPPLY SEWERAGE
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2678450
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Patent number 2,678,450
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Issue date May 18, 1954
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B61 - RAILWAYS
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270211
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Patent number 270,211
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Issue date Jan 9, 1883
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E03 - WATER SUPPLY SEWERAGE