ES20907A1 - Un nuevo sistema de motor a petróleo o a gas de un cilindro y de dos pistones equilibrados como movimiento y como detonación.
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Un nuevo sistema de motor a petróleo o a gas de un cilindro y de dos pistones equilibrados como movimiento y como detonación.
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ES20907A1897-05-251897-05-25Un nuevo sistema de motor a petróleo o a gas de un cilindro y de dos pistones equilibrados como movimiento y como detonación.
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