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Water management system
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Patent number 4,762,167
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Issue date Aug 9, 1988
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Tricorn, Inc.
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Thomas R. Dobson
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C23 - COATING METALLIC MATERIAL COATING MATERIAL WITH METALLIC MATERIAL CHEMI...
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Cooling system for electrical machine
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Patent number 4,753,284
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Issue date Jun 28, 1988
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Siemens Aktiengesellschaft
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Ingo-Edgar Krause
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H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
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3236292
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Patent number 3,236,292
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Issue date Feb 22, 1966
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B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
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1837860
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Patent number 1,837,860
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Issue date Dec 22, 1931
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F28 - HEAT EXCHANGE IN GENERAL
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1800163
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Patent number 1,800,163
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Issue date Apr 7, 1931
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H01 - BASIC ELECTRIC ELEMENTS
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1705278
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Patent number 1,705,278
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Issue date Mar 12, 1929
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A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
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1660146
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B60 - VEHICLES IN GENERAL
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1194304
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Patent number 1,194,304
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Issue date Aug 8, 1916
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F24 - HEATING RANGES VENTILATING
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839561
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Patent number 839,561
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Issue date Dec 25, 1906
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F24 - HEATING RANGES VENTILATING