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Engineer's Level-Rod.

Description: Reissued patent for an improvement in engineer's level which introduces a novel manner of marking the scale upon the face of the rod.
Date: April 5, 1881
Creator: Lynch, Michael L.
Partner: UNT Libraries Government Documents Department

Engineer's Level-Rod

Description: Patent for an engineer's level-rod which introduces a peculiar manner of marking the scale upon the face of the rod.
Date: November 30, 1880
Creator: Lynch, Michael L.
Partner: UNT Libraries Government Documents Department