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3627038
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Patent number 3,627,038
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Issue date Dec 14, 1971
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F24 - HEATING RANGES VENTILATING
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3612173
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Patent number 3,612,173
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Issue date Oct 12, 1971
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F24 - HEATING RANGES VENTILATING
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Patent number 3,415,314
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Issue date Dec 10, 1968
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F24 - HEATING RANGES VENTILATING
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3403725
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Patent number 3,403,725
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Issue date Oct 1, 1968
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F24 - HEATING RANGES VENTILATING
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3374831
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Patent number 3,374,831
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Issue date Mar 26, 1968
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F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
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B60 - VEHICLES IN GENERAL
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Issue date Feb 5, 1957
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F24 - HEATING RANGES VENTILATING
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B60 - VEHICLES IN GENERAL
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F24 - HEATING RANGES VENTILATING
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F01 - MACHINES OR ENGINES IN GENERAL ENGINE PLANTS IN GENERAL STEAM ENGINES