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Tube support grid and spacer therefor
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Patent number 4,570,703
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Issue date Feb 18, 1986
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The United States of America as represented by the United States Department o...
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Richard J. Ringsmuth
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F28 - HEAT EXCHANGE IN GENERAL
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3702633
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Patent number 3,702,633
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Issue date Nov 14, 1972
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F28 - HEAT EXCHANGE IN GENERAL
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3361197
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Patent number 3,361,197
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Issue date Jan 2, 1968
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F28 - HEAT EXCHANGE IN GENERAL
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2847192
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Patent number 2,847,192
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Issue date Aug 12, 1958
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F28 - HEAT EXCHANGE IN GENERAL
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2505695
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Patent number 2,505,695
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Issue date Apr 25, 1950
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F28 - HEAT EXCHANGE IN GENERAL
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1923274
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Patent number 1,923,274
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Issue date Aug 22, 1933
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F28 - HEAT EXCHANGE IN GENERAL
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1822483
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Patent number 1,822,483
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Issue date Sep 8, 1931
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F22 - STEAM GENERATION
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1655086
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Patent number 1,655,086
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Issue date Jan 3, 1928
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F28 - HEAT EXCHANGE IN GENERAL
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1326267
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Patent number 1,326,267
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Issue date Dec 30, 1919
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F28 - HEAT EXCHANGE IN GENERAL
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577894
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Patent number 577,894
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Issue date Mar 2, 1897
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F28 - HEAT EXCHANGE IN GENERAL
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46253
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Patent number 46,253
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Issue date Feb 7, 1865
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F28 - HEAT EXCHANGE IN GENERAL
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38494
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Patent number 38,494
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Issue date May 12, 1863
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F28 - HEAT EXCHANGE IN GENERAL