Illinois Supreme Court September 19, 1979, No. 51519 (Phelps v. Industrial Commission)

MR. JUSTICE CLARK

delivered the opinion of the court:

Claimant, George Phelps, injured either his left or right knee or both on June 19, 1974, when he fell and struck it or them on a rotary table while in the course of his employment as a “roughnecker,” or driller helper in an oil field, with Crescent Drilling Co., respondent.