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3118604
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Patent number 3,118,604
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Issue date Jan 21, 1964
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B64 - AIRCRAFT AVIATION COSMONAUTICS
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3008402
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Patent number 3,008,402
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Issue date Nov 14, 1961
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F24 - HEATING RANGES VENTILATING
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2665168
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Patent number 2,665,168
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Issue date Jan 5, 1954
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E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
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2570226
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Patent number 2,570,226
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Issue date Oct 9, 1951
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E01 - CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
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2550324
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Patent number 2,550,324
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Issue date Apr 24, 1951
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A01 - AGRICULTURE FORESTRY ANIMAL HUSBANDRY HUNTING TRAPPING FISHING
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1793719
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Patent number 1,793,719
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Issue date Feb 24, 1931
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F41 - WEAPONS