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Priority to JP5486875UpriorityCriticalpatent/JPS51135583U/ja
Publication of JPS51135583UpublicationCriticalpatent/JPS51135583U/ja
Method of translating the location of a predetermined position on one side of a substantially nonferrous structural barrier of a building to an opposite side of said barrier
Method of translating the location of a predetermined position on one side of a substantially nonferrous structural barrier of a building to an opposite side of said barrier