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JEAN LE ROY
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JEAN LE ROY
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Publication of GB514370ApublicationCriticalpatent/GB514370A/en
Perfeccionamientos en aparatos para el control o comprobación de la puntería de cañones destinados a disparar contra aeroplanos y otras aeronaves, desde barcos u otros emplazamientos inestables.
Perfeccionamientos en aparatos para el control o comprobación de la puntería de cañones destinados a disparar contra aeroplanos y otras aeronaves, desde barcos u otros emplazamientos inestables.