290 N.E.2d 181 GREGORY, APPELLEE, v. FLOWERS, ADMINISTRATOR, BUREAU OF WORKMEN’S COMPENSATION, ET AL., APPELLANTS. No. 71-782Supreme Court of Ohio. Decided November 29, 1972. Workmen’s compensation — Application for modification of award after two years — Statutory right substantive — R.C. 4123.84 — Not retroactively applicable, when — Provisions barring claims filed after two years […]