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Control valve
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Patent number 7,967,023
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Issue date Jun 28, 2011
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Frese A/S
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Ole Jørgensen
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G05 - CONTROLLING REGULATING
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-
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Syphon tube and vent valve assembly
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Patent number 4,056,118
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Issue date Nov 1, 1977
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Eaton Corporation
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Jay H. Bradford
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F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
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3541991
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Patent number 3,541,991
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Issue date Nov 24, 1970
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G08 - SIGNALLING
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3067945
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Patent number 3,067,945
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Issue date Dec 11, 1962
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F24 - HEATING RANGES VENTILATING
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2724400
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Patent number 2,724,400
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Issue date Nov 22, 1955
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F24 - HEATING RANGES VENTILATING
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2583481
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Patent number 2,583,481
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Issue date Jan 22, 1952
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F24 - HEATING RANGES VENTILATING
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2497181
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Patent number 2,497,181
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Issue date Feb 14, 1950
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F24 - HEATING RANGES VENTILATING
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2414189
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Patent number 2,414,189
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Issue date Jan 14, 1947
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F24 - HEATING RANGES VENTILATING
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2385584
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Patent number 2,385,584
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Issue date Sep 25, 1945
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F24 - HEATING RANGES VENTILATING
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2368712
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Patent number 2,368,712
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Issue date Feb 6, 1945
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F24 - HEATING RANGES VENTILATING
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2334047
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Patent number 2,334,047
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Issue date Nov 9, 1943
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F24 - HEATING RANGES VENTILATING
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2320104
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Patent number 2,320,104
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Issue date May 25, 1943
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F24 - HEATING RANGES VENTILATING
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2320162
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Patent number 2,320,162
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Issue date May 25, 1943
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F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
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2289218
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Patent number 2,289,218
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Issue date Jul 7, 1942
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F24 - HEATING RANGES VENTILATING
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2287075
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Patent number 2,287,075
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Issue date Jun 23, 1942
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F24 - HEATING RANGES VENTILATING
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2284007
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Patent number 2,284,007
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Issue date May 26, 1942
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F24 - HEATING RANGES VENTILATING
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2284137
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Patent number 2,284,137
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Issue date May 26, 1942
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F24 - HEATING RANGES VENTILATING
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2253588
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Patent number 2,253,588
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Issue date Aug 26, 1941
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F24 - HEATING RANGES VENTILATING
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2246765
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Patent number 2,246,765
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Issue date Jun 24, 1941
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F24 - HEATING RANGES VENTILATING
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2242546
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Patent number 2,242,546
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Issue date May 20, 1941
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F24 - HEATING RANGES VENTILATING
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2240277
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Patent number 2,240,277
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Issue date Apr 29, 1941
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F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
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2177649
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Patent number 2,177,649
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Issue date Oct 31, 1939
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F24 - HEATING RANGES VENTILATING
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2167433
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Patent number 2,167,433
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Issue date Jul 25, 1939
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F24 - HEATING RANGES VENTILATING
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2119723
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Patent number 2,119,723
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Issue date Jun 7, 1938
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F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
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2084256
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Patent number 2,084,256
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Issue date Jun 15, 1937
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F24 - HEATING RANGES VENTILATING
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1921915
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Patent number 1,921,915
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Issue date Aug 8, 1933
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F24 - HEATING RANGES VENTILATING
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1907844
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Patent number 1,907,844
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Issue date May 9, 1933
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F24 - HEATING RANGES VENTILATING