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Guide and Depth Regulator (open access)

Guide and Depth Regulator

This patent is for an improved form of guide and depth regulators by Mr. Frank B. Dow. This improved design "relates to new and useful improvements in guides and depth regulations for shovel plows," while "providing simple and easy means for the parts involved," (lines 9-16).
Date: November 11, 1919
Creator: Dow, Frank B.
System: The Portal to Texas History