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Heat exchanger
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Patent number 4,815,535
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Issue date Mar 28, 1989
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MTU-Motoren und Turbinen-Union Munchen GmbH
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Klaus Hagemeister
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F28 - HEAT EXCHANGE IN GENERAL
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3601186
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Patent number 3,601,186
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Issue date Aug 24, 1971
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F28 - HEAT EXCHANGE IN GENERAL
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3400759
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Patent number 3,400,759
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Issue date Sep 10, 1968
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F28 - HEAT EXCHANGE IN GENERAL
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3302705
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Patent number 3,302,705
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Issue date Feb 7, 1967
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F24 - HEATING RANGES VENTILATING
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3262497
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Patent number 3,262,497
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Issue date Jul 26, 1966
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F28 - HEAT EXCHANGE IN GENERAL
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3223155
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Patent number 3,223,155
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Issue date Dec 14, 1965
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F28 - HEAT EXCHANGE IN GENERAL
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2133249
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Patent number 2,133,249
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Issue date Oct 11, 1938
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F28 - HEAT EXCHANGE IN GENERAL
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1934787
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Patent number 1,934,787
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Issue date Nov 14, 1933
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F24 - HEATING RANGES VENTILATING
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1917042
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Patent number 1,917,042
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Issue date Jul 4, 1933
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F28 - HEAT EXCHANGE IN GENERAL
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1891058
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Patent number 1,891,058
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Issue date Dec 13, 1932
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F28 - HEAT EXCHANGE IN GENERAL
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1882116
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Patent number 1,882,116
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Issue date Oct 11, 1932
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F24 - HEATING RANGES VENTILATING
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1871256
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Patent number 1,871,256
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Issue date Aug 9, 1932
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F28 - HEAT EXCHANGE IN GENERAL
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1856963
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Patent number 1,856,963
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Issue date May 3, 1932
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F28 - HEAT EXCHANGE IN GENERAL
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1782380
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Patent number 1,782,380
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Issue date Nov 18, 1930
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F24 - HEATING RANGES VENTILATING
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1778825
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Patent number 1,778,825
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Issue date Oct 21, 1930
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F25 - REFRIGERATION OR COOLING COMBINED HEATING AND REFRIGERATION SYSTEMS HEA...
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1651875
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Patent number 1,651,875
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Issue date Dec 6, 1927
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F24 - HEATING RANGES VENTILATING
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1421247
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Patent number 1,421,247
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Issue date Jun 27, 1922
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F23 - COMBUSTION APPARATUS COMBUSTION PROCESSES
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788087
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Patent number 788,087
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Issue date Apr 25, 1905
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F28 - HEAT EXCHANGE IN GENERAL
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411476
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Patent number 411,476
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Issue date Sep 24, 1889
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F28 - HEAT EXCHANGE IN GENERAL
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307496
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Patent number 307,496
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Issue date Nov 4, 1884
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F28 - HEAT EXCHANGE IN GENERAL
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190567
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Patent number 190,567
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Issue date May 8, 1877
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F28 - HEAT EXCHANGE IN GENERAL
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135758
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Patent number 135,758
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Issue date Feb 11, 1873
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F28 - HEAT EXCHANGE IN GENERAL
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101668
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Patent number 101,668
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Issue date Apr 5, 1870
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F28 - HEAT EXCHANGE IN GENERAL
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88964
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Patent number 88,964
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Issue date Apr 13, 1869
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F28 - HEAT EXCHANGE IN GENERAL