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Reflection densitometer
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Patent number 5,173,750
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Issue date Dec 22, 1992
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Eastman Kodak Company
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Joseph F. Laukaitis
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G01 - MEASURING TESTING
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Analysis system
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Patent number 4,550,084
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Issue date Oct 29, 1985
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Allied Corporation
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Larry A. Nelson
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G01 - MEASURING TESTING
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Smoke opacity meter
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Patent number 4,544,273
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Issue date Oct 1, 1985
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Particulate Instruments
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Dale F. Berndt
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G01 - MEASURING TESTING
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Analysis system
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Patent number 4,446,106
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Issue date May 1, 1984
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Instrumentation Laboratory Inc.
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Larry A. Nelson
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G01 - MEASURING TESTING