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  • Non-obviousness

Argued October 14, 1965. Decided February 21, 1966

Petitioner: Graham - sues John Deere for patent infringement

Device: designed to absorb shock from plow shanks in rocky soil to prevent damage to the plow

1955 - 5th circuit says valid - "old result in a cheaper and otherwise more advantageous way." 1966 - 8th circuit says invalid - no new result in the combination