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Aluminum heat exchanger braze furnace
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Patent number 5,328,084
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Issue date Jul 12, 1994
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General Motors Corporation
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Gary A. Halstead
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B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
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Tunnel kiln
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Patent number 4,005,981
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Issue date Feb 1, 1977
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Hanley Company
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John E. Turnbull
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F27 - FURNACES KILNS OVENS RETORTS
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3031176
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Patent number 3,031,176
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Issue date Apr 24, 1962
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F27 - FURNACES KILNS OVENS RETORTS
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1651380
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Patent number 1,651,380
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Issue date Dec 6, 1927
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F27 - FURNACES KILNS OVENS RETORTS
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1355906
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Patent number 1,355,906
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Issue date Oct 19, 1920
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F27 - FURNACES KILNS OVENS RETORTS
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1356396
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Patent number 1,356,396
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Issue date Oct 19, 1920
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F27 - FURNACES KILNS OVENS RETORTS