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Sterility indicating device
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Patent number 4,289,088
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Issue date Sep 15, 1981
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Minnesota Mining and Manufacturing Co.
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John V. Scibelli
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G01 - MEASURING TESTING
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Temperature averaging device
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Patent number 4,008,615
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Issue date Feb 22, 1977
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Emhart Industries, Inc.
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Malcolm D. MacMaster
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F28 - HEAT EXCHANGE IN GENERAL
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Time temperature indicator
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Patent number 3,942,467
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Issue date Mar 9, 1976
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Bio-Medical Sciences, Inc.
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Robert J. Witonsky
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G01 - MEASURING TESTING
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3750471
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Patent number 3,750,471
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Issue date Aug 7, 1973
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G01 - MEASURING TESTING
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3748655
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Patent number 3,748,655
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Issue date Jul 24, 1973
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G01 - MEASURING TESTING
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3665766
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Patent number 3,665,766
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Issue date May 30, 1972
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G01 - MEASURING TESTING
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3633191
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Patent number 3,633,191
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Issue date Jan 4, 1972
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G01 - MEASURING TESTING
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3491597
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Patent number 3,491,597
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Issue date Jan 27, 1970
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G01 - MEASURING TESTING
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3429183
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Patent number 3,429,183
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Issue date Feb 25, 1969
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G01 - MEASURING TESTING
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3201991
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Patent number 3,201,991
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Issue date Aug 24, 1965
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G01 - MEASURING TESTING