F MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
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F04 POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
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F04D NON-POSITIVE-DISPLACEMENT PUMPS
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29/00 Details, component parts, or accessories
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F04D29/05 Shafts or bearings, or assemblies thereof, specially adapted for elastic fluid pumps
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