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Economizer support
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Patent number 4,480,594
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Issue date Nov 6, 1984
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Combustion Engineering, Inc.
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Robert P. Sullivan
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F22 - STEAM GENERATION
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Method of making variably rifled tubes
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Patent number 4,314,130
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Issue date Feb 2, 1982
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Combustion Engineering, Inc.
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Thomas L. Mabery
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B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
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Method of forming variably rifled tubes
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Patent number 4,270,690
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Issue date Jun 2, 1981
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Combustion Engineering, Inc.
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Thomas L. Mabery
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B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...