Exhibit 23 CONSENT OF INDEPENDENT PUBLIC ACCOUNTANTS As independent public accountants, we hereby consent to the incorporation of our report dated January 25, 1996 included in this Form 10- K, into the Company's previously filed Registration Statements, File Numbers 2-96973, 33-22358, and 33-33087. /s/ ARTHUR ANDERSEN LLP ARTHUR ANDERSEN LLP Seattle, Washington February 9, 1996