Whenever an investigation is made, a hearing is held, or a decision is entered by the commission, it is the duty of the commission to make a report or decision in writing in respect thereto which shall state its findings of fact and conclusions thereon, together with its decision or requirement in the premises. All such reports and decisions shall be entered of record and a copy thereof shall be furnished to all parties to the proceedings and to such other persons as the commission may deem advisable.L. 13: p. 467, § 9. C.L. § 2920. CSA: C. 137, § 10. L. 45: p. 525, § 1. CRS 53: § 115-2-6. C.R.S. 1963: § 115-2-6. L. 69: p. 929, § 7.