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Filter
Patent for "a new and improved filter which is simple and durable in construction and easily and conveniently cleaned without disturbing the gravel" (lines 13-17).
Date:
November 6, 1889
Creator:
Fretz, Emil & Waespi, Jacob
System:
The Portal to Texas History
Plow
Patent for "an improved attachment for the mold-boards and landsides of plows, the object being to furnish a plow or similar impliment with an attachable and removable covering for the landside and mold-board, which will prevent the adhesion of soil thereto" (lines 12-18).
Date:
November 6, 1889
Creator:
Miles, Fredrick Alanson
System:
The Portal to Texas History