Description: Patent for new and improved submarine channel protection. This design "consist[s] of two walls approximately parallel with each other extending across the sand-bar, and a barrier consisting of inclined wings extending from the side walls to the center of the channel, and a filling in rear of the wings" (lines 46-51).
Date: March 11, 1890
Creator: Mauermann, Albert J.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department