Gearing systems consisting of a plurality of hydrokinetic units operating alternatively, e.g. made effective or ineffective by filling or emptying or by mechanical clutches

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Rotary fluid gearing of the hydrokinetic type (control of exclusively fluid gearing F16H61/38) > Combined pump-turbine units > Gearing systems consisting of a plurality of hydrokinetic units operating alternatively, e.g. made effective or ineffective by filling or emptying or by mechanical clutches