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GB950434A
|
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The construction of aerofoil blades for radial flow fans
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GB905568A
|
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Improvements in radial flow machines such as fans and pumps
|
|
GB875551A
|
|
Improvements in centrifugal fans
|
|
GB817868A
|
|
Improvements in radial flow fans and the like
|
|
GB732317A
|
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Improvements in single stage cased screw propeller fans and the like
|
|
GB676371A
|
|
Improvements in multi-stage cased screw-propeller fans, compressors, pumps and the like
|
|
US2320733A
|
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Screw type fluid propelling apparatus
|
|
US2224519A
|
|
Screw type fluid propelling apparatus
|
|
CA528950A
|
|
Multi-stage cased screw-propeller fans, compressors, pumps and the like
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