Article: U.S. Patents Awarded to Inventors in South Dakota (Dec. 3)

Targeted News Service

ALEXANDRIA, Va., Dec. 3 -- The following federal patents were awarded to inventors in South Dakota.

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South Dakota Inventors Develop Liquid Fertilizer Applicator System

ALEXANDRIA, Va., Dec. 3 -- Andrew S. Wollmann of Faulkton, S.D., has developed a no-till drill liquid fertilizer applicator system.

According to the abstract released by the U.S. Patent & Trademark Office: "A no-till drill liquid fertilizer applicator system for effectively protecting a fertilizer dispensing tube on a no-till drill while dispensing liquid fertilizer with small grain seed. The no-till drill liquid fertilizer applicator system includes a receiver tube, a guide tube attached to the ...

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