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Leak detector
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Patent number 5,156,042
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Issue date Oct 20, 1992
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ProEco, Inc.
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John A. Carlin
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G01 - MEASURING TESTING
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Leak detector
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Patent number 4,850,223
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Issue date Jul 25, 1989
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TankTech, Inc.
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John A. Carlin
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G01 - MEASURING TESTING
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Stride evaluation system
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Patent number 4,774,679
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Issue date Sep 27, 1988
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John A. Carlin
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A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
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