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4-20 mA interface circuit
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Patent number 7,211,990
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Issue date May 1, 2007
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Invensys Systems, Inc.
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Michael Loechner
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G08 - SIGNALLING
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4-20 mA interface circuit
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Patent number 7,167,537
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Issue date Jan 23, 2007
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Invensys Systems, Inc.
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Michael Loechner
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G08 - SIGNALLING
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4-20 mA interface circuit
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Patent number 6,907,082
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Issue date Jun 14, 2005
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Invensys Systems, Inc.
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Michael Loechner
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G08 - SIGNALLING
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