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Ultra-lean dilution apparatus
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Patent number 6,499,872
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Issue date Dec 31, 2002
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Hydro Systems Company
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William F. Sand
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A01 - AGRICULTURE FORESTRY ANIMAL HUSBANDRY HUNTING TRAPPING FISHING
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Ultra-lean dilution apparatus
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Patent number 6,238,081
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Issue date May 29, 2001
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Hydro Systems Company
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William F. Sand
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B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
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3734113
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Patent number 3,734,113
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Issue date May 22, 1973
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E04 - BUILDING
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2872858
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Patent number 2,872,858
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Issue date Feb 10, 1959
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F24 - HEATING RANGES VENTILATING
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2678659
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Patent number 2,678,659
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Issue date May 18, 1954
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F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
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2613627
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Patent number 2,613,627
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Issue date Oct 14, 1952
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F42 - AMMUNITION BLASTING
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2444254
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Patent number 2,444,254
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Issue date Jun 29, 1948
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G05 - CONTROLLING REGULATING
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2334992
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Patent number 2,334,992
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Issue date Nov 23, 1943
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E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
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2037583
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Patent number 2,037,583
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Issue date Apr 14, 1936
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B64 - AIRCRAFT AVIATION COSMONAUTICS
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1850423
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Patent number 1,850,423
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Issue date Mar 22, 1932
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G05 - CONTROLLING REGULATING
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1836826
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Patent number 1,836,826
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Issue date Dec 15, 1931
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B63 - SHIPS OR OTHER WATERBORNE VESSELS RELATED EQUIPMENT
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1410742
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Patent number 1,410,742
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Issue date Mar 28, 1922
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B63 - SHIPS OR OTHER WATERBORNE VESSELS RELATED EQUIPMENT
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1366595
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Patent number 1,366,595
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Issue date Jan 25, 1921
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B63 - SHIPS OR OTHER WATERBORNE VESSELS RELATED EQUIPMENT
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921714
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Patent number 921,714
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Issue date May 18, 1909
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B64 - AIRCRAFT AVIATION COSMONAUTICS
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763326
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Patent number 763,326
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Issue date Jun 21, 1904
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B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
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671983
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Patent number 671,983
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Issue date Apr 16, 1901
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B64 - AIRCRAFT AVIATION COSMONAUTICS
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471725
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Patent number 471,725
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Issue date Mar 29, 1892
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B64 - AIRCRAFT AVIATION COSMONAUTICS
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191023
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Patent number 191,023
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Issue date May 22, 1877
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B64 - AIRCRAFT AVIATION COSMONAUTICS
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182859
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Patent number 182,859
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Issue date Oct 3, 1876
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B64 - AIRCRAFT AVIATION COSMONAUTICS
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75868
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Patent number 75,868
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Issue date Mar 24, 1868
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B64 - AIRCRAFT AVIATION COSMONAUTICS