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Flow sensor
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Patent number 4,779,458
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Issue date Oct 25, 1988
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Osman K. Mawardi
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G01 - MEASURING TESTING
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BTU Meter
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Patent number 4,332,164
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Issue date Jun 1, 1982
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Robert J. Schlesinger
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G01 - MEASURING TESTING
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Heat meters
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Patent number 4,250,747
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Issue date Feb 17, 1981
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ISS Clorius Limited
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Kenneth V. Diprose
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G01 - MEASURING TESTING
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Heat meters
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Patent number 4,224,825
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Issue date Sep 30, 1980
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Wilgood Corporation
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Murray F. Feller
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G01 - MEASURING TESTING
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Electronic heat amount meter
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Patent number 4,157,034
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Issue date Jun 5, 1979
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Industrie-Werke Karlsruhe Augsburg Aktiengesellschaft
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Karl Buchele
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G01 - MEASURING TESTING
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3872722
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Patent number 3,872,722
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Issue date Mar 25, 1975
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G01 - MEASURING TESTING
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3842669
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Patent number 3,842,669
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Issue date Oct 22, 1974
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G01 - MEASURING TESTING
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3815813
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Patent number 3,815,813
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Issue date Jun 11, 1974
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F24 - HEATING RANGES VENTILATING
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3617713
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Patent number 3,617,713
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Issue date Nov 2, 1971
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G01 - MEASURING TESTING
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3537311
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Patent number 3,537,311
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Issue date Nov 3, 1970
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G01 - MEASURING TESTING
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3301049
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Patent number 3,301,049
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Issue date Jan 31, 1967
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G01 - MEASURING TESTING
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2733603
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Patent number 2,733,603
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Issue date Feb 7, 1956
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G01 - MEASURING TESTING
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2305769
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Patent number 2,305,769
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Issue date Dec 22, 1942
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G01 - MEASURING TESTING
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2210082
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Patent number 2,210,082
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Issue date Aug 6, 1940
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G01 - MEASURING TESTING
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2137133
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Patent number 2,137,133
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Issue date Nov 15, 1938
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G01 - MEASURING TESTING
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2123725
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Patent number 2,123,725
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Issue date Jul 12, 1938
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G01 - MEASURING TESTING
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1948234
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Patent number 1,948,234
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Issue date Feb 20, 1934
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G01 - MEASURING TESTING
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1944587
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Patent number 1,944,587
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Issue date Jan 23, 1934
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G01 - MEASURING TESTING