Item CR-AN-AH-MAG-PATEN-000068 - Solicitud de George Rockwel Bennet para inscribir el invento: mejoras en máquinas de taladrar especialmente las destinadas a perforar túneles
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CR AN CR-AN-AH-MAG-PATEN-000068
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Solicitud de George Rockwel Bennet para inscribir el invento: mejoras en máquinas de taladrar especialmente las destinadas a perforar túneles
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1910-05-03 - ? (Creation)
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