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  • Tetrad Computer Applications
    Tetrad Computer Applications
    (360) 734-3318
    PO Box 9754, 98227  Bellingham

    **TETRAD Computer Applications has been an authorized distributor of selected Statistics Canada files for the 1986, 1991, 1996, 2001, 2006, and 2011 censuses. No confidential personal information about an individual family, household organization or business has been obtained from Statistics Canada…