Colorado public utilities commission Denies mountain Bell interim phone rate increase. Post F 17, 1972 p.1,3 RM F 17, 1972 p.5,6 PUC refuses Mountain Bell rate hike rehearing. RMN F 26, 1972 p.5,7 Post F 26, 1972 p.2 Recent ruling cripples business of small trash collector Post Ap 23t 1972 p*11,22 Post Ap 25 19310 Colorado Rural Electric Association opposes propos- ed constitutional amendment #1d on Nov. 7 ballot changing makeup of commission. Post O 25, 1972 p.97 0