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Flow regulating device
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Patent number 4,458,714
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Issue date Jul 10, 1984
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John L. Delwiche
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F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
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Inverted bucket steam trap
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Patent number 4,149,557
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Issue date Apr 17, 1979
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Armstrong Machine Works
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David A. Keech
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F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
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3153247
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Patent number 3,153,247
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Issue date Oct 20, 1964
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E03 - WATER SUPPLY SEWERAGE
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2847022
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Patent number 2,847,022
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Issue date Aug 12, 1958
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E03 - WATER SUPPLY SEWERAGE
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2658517
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Patent number 2,658,517
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Issue date Nov 10, 1953
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F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
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2641275
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Patent number 2,641,275
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Issue date Jun 9, 1953
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E03 - WATER SUPPLY SEWERAGE
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2400561
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Patent number 2,400,561
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Issue date May 21, 1946
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G05 - CONTROLLING REGULATING
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2400560
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Patent number 2,400,560
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Issue date May 21, 1946
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G05 - CONTROLLING REGULATING
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2220294
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Patent number 2,220,294
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Issue date Nov 5, 1940
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F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
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2189662
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Patent number 2,189,662
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Issue date Feb 6, 1940
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F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
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2146680
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Patent number 2,146,680
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Issue date Feb 7, 1939
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F24 - HEATING RANGES VENTILATING
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2133556
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Patent number 2,133,556
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Issue date Oct 18, 1938
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F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
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2095346
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Patent number 2,095,346
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Issue date Oct 12, 1937
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F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
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1603240
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Patent number 1,603,240
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Issue date Oct 12, 1926
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F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
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1016516
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Patent number 1,016,516
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Issue date Feb 6, 1912
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F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
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882956
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Patent number 882,956
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Issue date Mar 24, 1908
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F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
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699249
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Patent number 699,249
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Issue date May 6, 1902
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F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
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606404
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Patent number 606,404
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Issue date Jun 28, 1898
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F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
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581538
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Patent number 581,538
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Issue date Apr 27, 1897
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E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
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455257
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Patent number 455,257
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Issue date Jun 30, 1891
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E03 - WATER SUPPLY SEWERAGE
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412911
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Patent number 412,911
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Issue date Oct 15, 1889
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G05 - CONTROLLING REGULATING