Propeller-shaped stirrers for producing an axial flow, e.g. shaped like a ship or aircraft propeller

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Mixers with rotary stirring devices in fixed receptacles (magnetic mixers B01F33/45); Kneaders > Stirrers > characterised by the configuration of the stirrers > Propeller-shaped stirrers for producing an axial flow, e.g. shaped like a ship or aircraft propeller

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• B01F 27/1131 with holes in the propeller blade surface
• B01F 27/1132 with guiding tubes or tubular segments fixed to and surrounding the tips of the propeller blades, e.g. for supplementary mixing
• B01F 27/1133
• B01F 27/1134