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Process automation system
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Issue date Oct 29, 2002
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Siemens Aktiengesellschaft
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Hans-Joachim Langels
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G05 - CONTROLLING REGULATING
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Scrubber control system
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Patent number 5,975,736
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Issue date Nov 2, 1999
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Ontrak Systems, Inc.
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Mark A. Simmons
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G05 - CONTROLLING REGULATING
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Scrubber control system
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Patent number 5,548,505
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Issue date Aug 20, 1996
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OkTrak Systems, Inc.
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Mark A. Simmons
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G05 - CONTROLLING REGULATING