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Volumetric fluid flow sensor
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Patent number 5,033,311
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Issue date Jul 23, 1991
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CTE Chem Tech Equipment Co., Inc.
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Craig S. Custer
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G01 - MEASURING TESTING
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Level sensing system
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Patent number 4,796,473
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Issue date Jan 10, 1989
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Chem Tec Equipment Corp.
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Craig S. Custer
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G01 - MEASURING TESTING
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Excess flow control device
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Patent number 4,574,833
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Issue date Mar 11, 1986
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Craig S. Custer
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F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...