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GB483510A
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Improvements in and relating to settling tanks
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GB472258A
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Improvements in or relating to the classification of material by elutriation
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US1995559A
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Settling tank
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GB405069A
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Improvements in or relating to apparatus for controlling the delivery of liquid to and its distribution within tanks and like vessels
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GB395728A
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Improvements in or relating to settling tanks
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US1890206A
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Classification of materials by elutriation
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GB340027A
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Improvements in or relating to the classification of materials by elutriation
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GB340242A
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Improvements in or relating to the classification or separation of mixed materials by elutriation
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US1705351A
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Method and apparatus for the classification of materials by elutriation
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US1665081A
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Valve mechanism for controlling the discharge of powdered material and sand from tanks or other receptacles
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GB297369A
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Improvements in or relating to elutriators for testing finely divided, pulverulent or like materials
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GB280123A
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Improvements in or relating to valve mechanism for controlling the discharge of powdered material or sand from a tank or other receptacle
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GB280121A
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Improvements in or relating to vortex classifiers suitable for use in the classification of powdered materials by elutriation
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GB280122A
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Improvements in or relating to a method and apparatus for the classification of materials by elutriation
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GB279932A
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Improvements in or relating to the classification of powdered materials by elutriation
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US1610725A
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Means for the grading of powdered material by elutriation or hydraulic classification
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GB231661A
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Improvements in or relating to the grading of powdered material by elutriation or hydraulic classification
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GB189912949A
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Improvements in or relating to the Connection of House Service or Branch Conductors to Electric Mains.
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