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Rotary-piston machines or pumps having the characteristics covered by two or more groups [CPC: F04C2/02], [CPC: F04C2/08], [CPC: F04C2/22], [CPC: F04C2/24] or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in group [CPC: F04C2/08] or [CPC: F04C2/22] and having a hinged member