denver, Business. Communications Bell Systems, Inc., at 4840 W. 29th Ave.j has exclusive dealership in Colorado & Wyoming for business communications systems division of Sony Corp. of America. Post Mr 25, 1979 p.4E Effective Interpersonal Relations, new firm headed by --Norwood L. Robb, offers seminars on communication, Up The Creek ja 14, 1983 p.4 Wordcom uses new systems to communicate directly with office machines, making it easier to prepare annual reports, etc. RMBJ Ja 31, 1983 p.18-19 American Bell opens Ist new PhoneCenter Store. RMN Mr 4, 1983 p.94