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Siphon alarm and restarting mechanism
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Patent number 5,898,375
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Issue date Apr 27, 1999
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Fluid Dynamic Siphons, Inc.
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Donald J. Patterson
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C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
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Flushing siphon
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Patent number 4,625,752
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Issue date Dec 2, 1986
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John A. George
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F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
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Gas-plug type valve
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Patent number 4,586,527
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Issue date May 6, 1986
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Iosif Baumberg
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F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
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Siphon apparatus
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Patent number 4,181,142
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Issue date Jan 1, 1980
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John A. George
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F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
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3589404
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Patent number 3,589,404
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Issue date Jun 29, 1971
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F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
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3378121
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Patent number 3,378,121
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Issue date Apr 16, 1968
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F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
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3196900
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Patent number 3,196,900
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Issue date Jul 27, 1965
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G05 - CONTROLLING REGULATING
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2727530
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Patent number 2,727,530
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Issue date Dec 20, 1955
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G05 - CONTROLLING REGULATING
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2622620
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Patent number 2,622,620
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Issue date Dec 23, 1952
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F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
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2609868
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Patent number 2,609,868
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Issue date Sep 9, 1952
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F02 - COMBUSTION ENGINES HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
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2608374
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Patent number 2,608,374
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Issue date Aug 26, 1952
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F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
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2604266
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Patent number 2,604,266
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Issue date Jul 22, 1952
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G05 - CONTROLLING REGULATING
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2588839
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Patent number 2,588,839
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Issue date Mar 11, 1952
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G05 - CONTROLLING REGULATING
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2555674
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Patent number 2,555,674
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Issue date Jun 5, 1951
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G05 - CONTROLLING REGULATING
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2521477
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Patent number 2,521,477
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Issue date Sep 5, 1950
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G01 - MEASURING TESTING
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2509839
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Patent number 2,509,839
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Issue date May 30, 1950
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E21 - EARTH DRILLING MINING
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2487650
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Patent number 2,487,650
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Issue date Nov 8, 1949
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G05 - CONTROLLING REGULATING
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2461026
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Patent number 2,461,026
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Issue date Feb 8, 1949
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G05 - CONTROLLING REGULATING
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2409871
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Patent number 2,409,871
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Issue date Oct 22, 1946
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G05 - CONTROLLING REGULATING
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2369571
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Patent number 2,369,571
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Issue date Feb 13, 1945
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G05 - CONTROLLING REGULATING
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2342301
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Patent number 2,342,301
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Issue date Feb 22, 1944
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E21 - EARTH DRILLING MINING
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2320886
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Patent number 2,320,886
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Issue date Jun 1, 1943
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G05 - CONTROLLING REGULATING
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2306445
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Patent number 2,306,445
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Issue date Dec 29, 1942
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E03 - WATER SUPPLY SEWERAGE
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2293153
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Patent number 2,293,153
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Issue date Aug 18, 1942
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E21 - EARTH DRILLING MINING
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2288607
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Patent number 2,288,607
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Issue date Jul 7, 1942
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H04 - ELECTRIC COMMUNICATION TECHNIQUE
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2270304
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Patent number 2,270,304
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Issue date Jan 20, 1942
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G05 - CONTROLLING REGULATING