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Control valves
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Patent number 4,285,498
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Issue date Aug 25, 1981
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Imperial Chemical Industries Limited
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Douglas D. J. Nightingale
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F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
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Valve
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Patent number 4,268,472
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Issue date May 19, 1981
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Imperial Chemical Industries Limited
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Douglas D. J. Nightingale
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F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
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Valve
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Patent number 4,198,368
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Issue date Apr 15, 1980
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Imperial Chemical Industries Limited
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Douglas D. J. Nightingale
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F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
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Control valves
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Patent number 4,183,500
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Issue date Jan 15, 1980
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Imperial Chemical Industries Limited
-
Douglas D. J. Nightingale
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F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...