-
2568807
-
Patent number 2,568,807
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Issue date Sep 25, 1951
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F28 - HEAT EXCHANGE IN GENERAL
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776607
-
Patent number 776,607
-
Issue date Dec 6, 1904
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F28 - HEAT EXCHANGE IN GENERAL
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772617
-
Patent number 772,617
-
Issue date Oct 18, 1904
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F28 - HEAT EXCHANGE IN GENERAL
-
717936
-
Patent number 717,936
-
Issue date Jan 6, 1903
-
F28 - HEAT EXCHANGE IN GENERAL
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711009
-
Patent number 711,009
-
Issue date Oct 14, 1902
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F28 - HEAT EXCHANGE IN GENERAL
-
700148
-
Patent number 700,148
-
Issue date May 13, 1902
-
F28 - HEAT EXCHANGE IN GENERAL
-
555451
-
Patent number 555,451
-
Issue date Feb 25, 1896
-
F28 - HEAT EXCHANGE IN GENERAL
-
208764
-
Patent number 208,764
-
Issue date Oct 8, 1878
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F28 - HEAT EXCHANGE IN GENERAL
-
208763
-
Patent number 208,763
-
Issue date Oct 8, 1878
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F28 - HEAT EXCHANGE IN GENERAL