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Agricultural Implement.

Description: Patent for an agricultural implement related to ground treating. The implement introduces a novel mounting for a colter that will keep it in line with the draft beam, as well as aids in holding the soil-turning elements in place.
Date: November 4, 1913
Creator: Vanderwater, Daniel B.
Item Type: Refine your search to only Patent

Drill-Bit

Description: Patent for a drill bit for oil wells that provides a way for the bit to be lubricated while in use to prevent the adhesion of gummy substances.
Date: June 4, 1918
Creator: Kilgore, John G.
Item Type: Refine your search to only Patent
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