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Individual
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Individual
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Priority to ES2915ApriorityCriticalpatent/ES2915A1/es
Publication of ES2915A1publicationCriticalpatent/ES2915A1/es
Mejoras o perfeccionamientos llevados a efecto en su aparato para levantar grandes pesos que reemplaza el espeque o alzaprima especial que actualmente se usa, con especialidad para levantar las vías férreas, y también para levantar fácilmente objetos muy