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Barometric distillation system
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Patent number 4,319,965
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Issue date Mar 16, 1982
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Sidney A. Parker
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C02 - TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
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Twin compressor mechanism in one enclosure
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Patent number 4,277,955
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Issue date Jul 14, 1981
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Lennox Industries, Inc.
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Sidney A. Parker
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F25 - REFRIGERATION OR COOLING COMBINED HEATING AND REFRIGERATION SYSTEMS HEA...
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Compressor muffling arrangement
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Patent number 4,061,444
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Issue date Dec 6, 1977
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Lennox Industries, Inc.
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William R. Dirk
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F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
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Control apparatus for two-speed compressor
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Patent number 4,041,542
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Issue date Aug 9, 1977
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Lennox Industries, Inc.
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David M. Pfarrer
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F25 - REFRIGERATION OR COOLING COMBINED HEATING AND REFRIGERATION SYSTEMS HEA...
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Power generation arrangement
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Patent number 3,953,971
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Issue date May 4, 1976
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Sidney A. Parker
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F03 - MACHINES OR ENGINES FOR LIQUIDS WIND, SPRING WEIGHT AND MISCELLANEOUS M...
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Environment control system
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Patent number 3,945,218
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Issue date Mar 23, 1976
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Lennox Industries, Inc.
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Sidney A. Parker
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F24 - HEATING RANGES VENTILATING
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Control apparatus for two-speed compressor
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Patent number 3,935,519
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Issue date Jan 27, 1976
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Lennox Industries Inc.
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David M. Pfarrer
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F25 - REFRIGERATION OR COOLING COMBINED HEATING AND REFRIGERATION SYSTEMS HEA...