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Flammable gas detection
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Patent number 5,070,721
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Issue date Dec 10, 1991
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City Technology Ltd.
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Anthony D. S. Tantram
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G01 - MEASURING TESTING
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Diffusion measurement
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Patent number 4,815,316
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Issue date Mar 28, 1989
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City Technology Limited
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Anthony D. S. Tantram
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G01 - MEASURING TESTING
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Gas sensor
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Patent number 4,633,704
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Issue date Jan 6, 1987
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City Technology Limited
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Anthony D. S. Tantram
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G01 - MEASURING TESTING
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Gas sensor
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Patent number 4,587,003
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Issue date May 6, 1986
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City Technology Limited
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Anthony D. S. Tantram
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G01 - MEASURING TESTING
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Gas sensor
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Patent number 4,474,648
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Issue date Oct 2, 1984
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City Technology Limited
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Anthony D. S. Tantram
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G01 - MEASURING TESTING
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Gas sensor
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Patent number 4,406,770
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Issue date Sep 27, 1983
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Coal Industry (Patents) Limited
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Yat S. Chan
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G01 - MEASURING TESTING
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Gas sensor
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Patent number 4,324,632
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Issue date Apr 13, 1982
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City Technology Limited
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Anthony D. S. Tantram
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G01 - MEASURING TESTING
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Gas sensor
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Patent number 4,132,616
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Issue date Jan 2, 1979
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City Technology Limited
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Anthony D. S. Tantram
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G01 - MEASURING TESTING