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Densitometer
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Patent number 5,025,656
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Issue date Jun 25, 1991
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Cambridge Applied Systems, Inc.
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Hubert A. Wright
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G01 - MEASURING TESTING
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Viscometer
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Patent number 4,864,849
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Issue date Sep 12, 1989
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Cambridge Applied Systems, Inc.
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Hubert A. Wright
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G01 - MEASURING TESTING
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Viscometer
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Patent number 4,627,272
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Issue date Dec 9, 1986
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Cambridge Applied Systems, Inc.
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Hubert A. Wright
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G01 - MEASURING TESTING