474 P.2d 807 S.C. HORNBACK, Petitioner, v. INDUSTRIAL COMMISSION of Arizona, Respondent, Graver Tank and Manufacturing Company, Respondent Employer, Graver Tank and Manufacturing Company, Respondent Carrier. No. 10039-PR.Supreme Court of Arizona. September 25, 1970. Page 217 Strickland, Altaffer, Davis Eppstein, Tucson, for petitioner. Donald L. Cross, Chief Counsel, Phoenix, for respondent Industrial Commission of Arizona. […]