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Manual seal coupler
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Patent number 5,370,359
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Issue date Dec 6, 1994
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Mastercool, Inc.
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Ali M. Sadegh
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F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
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3282292
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Patent number 3,282,292
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Issue date Nov 1, 1966
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F24 - HEATING RANGES VENTILATING
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2713350
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Patent number 2,713,350
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Issue date Jul 19, 1955
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F24 - HEATING RANGES VENTILATING
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1985858
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Patent number 1,985,858
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Issue date Dec 25, 1934
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F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
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1387446
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Patent number 1,387,446
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Issue date Aug 16, 1921
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F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
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1182737
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Patent number 1,182,737
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Issue date May 9, 1916
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F24 - HEATING RANGES VENTILATING
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1087730
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Patent number 1,087,730
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Issue date Feb 17, 1914
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F24 - HEATING RANGES VENTILATING
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875496
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Patent number 875,496
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F24 - HEATING RANGES VENTILATING
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752220
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Patent number 752,220
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Issue date Feb 16, 1904
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F24 - HEATING RANGES VENTILATING
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675312
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Patent number 675,312
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Issue date May 28, 1901
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F24 - HEATING RANGES VENTILATING
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566432
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Patent number 566,432
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Issue date Aug 25, 1896
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F24 - HEATING RANGES VENTILATING
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120311
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Patent number 120,311
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Issue date Oct 24, 1871
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F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
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28596
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Patent number 28,596
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Issue date Jun 5, 1860
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F24 - HEATING RANGES VENTILATING