(under subclass 221) Apparatus having more than one means through which motive fluid from a common source may be ejected.
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229, for motors having a plurality of selectively usable motive fluid outlets for discharging a fluid for the purpose of modifying the thrust direction.
263, for motors having plural outlets for discharging fluid.
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239, Fluid Sprinkling, Spraying, and Diffusing,
265.25+, for reaction motor nozzles, per se, comprising plural controlled fluid discharge outlets.