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Fluid sampling pump
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Patent number 5,191,801
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Issue date Mar 9, 1993
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Precision General, Inc.
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Paul V. Allen
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G01 - MEASURING TESTING
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Fluid sampling pump
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Patent number 5,092,742
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Issue date Mar 3, 1992
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Paul V. Allen
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G01 - MEASURING TESTING
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Fluid sampling pump
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Patent number 5,074,154
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Issue date Dec 24, 1991
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Precision General Inc.
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Paul V. Allen
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G01 - MEASURING TESTING