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GB706517A
|
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Improvements in apparatus for hauling railway wagons
|
|
GB712104A
|
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Improvements in or relating to the separation of solid materials of different specific gravities
|
|
GB680297A
|
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Improvements relating to cyclones for separating solid materials of different specific gravity
|
|
US2621790A
|
|
Separation of solid materials of different specific gravities
|
|
GB651587A
|
|
Improvements relating to the separation of solid materials of different specific gravities
|
|
GB638222A
|
|
Improvements in or relating to the separation of solid materials of different specific gravities
|
|
GB584504A
|
|
Improvements in or relating to the separation of solid materials of different specific gravities
|
|
GB575578A
|
|
Improvements in screw fan impellers
|
|
GB575470A
|
|
Improvements in impellers for screw fans
|
|
GB570820A
|
|
Improvements relating to belt-driven cased screw fans
|
|
GB565262A
|
|
Improvements in impeller blades of screw fans
|
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GB546471A
|
|
Improvements in coal washeries
|
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US2183281A
|
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Apparatus for pneumatic separation of materials of different specific gravities and sizes
|
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US2141451A
|
|
Apparatus for the pneumatic separation of materials of different specific gravities and sizes
|
|
US2058713A
|
|
Apparatus for washing coal and the like
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CA535424A
|
|
Separation of solid materials of different specific gravities
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