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BR102019017831A2
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AQUATIC BIKE
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The improvement introduced in folding oval bicycle
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Structural modules for layout of modular power plants
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Improvement introduced in a modular thermal-module with combined cycle
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Construction device introduced into an electrical power plant module
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Modular power plant system housed within a container transformer for connection to a local power distribution system
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Elliptical drive mechanism and a steering mechanism, applicable to velocipedes in general
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BR102012028693A2
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bicycle with differentiated drive set
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