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Mejoras introducidas en el objeto de la Patente principal número 186398 que se refería a unos "perfeccionamientos introducidos en los fusiles para pesca submarina" las cuales se caracterizan por sustituir la pieza -A- de la misma por un conjunto de otras dos: una que hace el oficio de arpón y otra de unión de dicho arpón con el eje de tracción encajando suavemente una en otra.
ES0188703A1949-06-171949-06-17Mejoras introducidas en la patente principal
ExpiredES188703A2
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