TAMM, Circuit Judge:
Appellant Higley sought a patent on a tractor-drawn frame or subsoil tiller — an oscillating groundworking implement which, by imparting a vibrating motion to the tools, not only can penetrate the soil to a depth of two and one half feet but can thereupon simultaneously shatter both hardpan and subsoil. The Patent Office rejected his application, and the Board of Appeals affirmed that rejection.
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