What is the gap between purchases of a one-month unlimited wash pass?
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Harold Guthrie, denizen of the digital world, is DRB's Numbers Guy. A graduate of the University of Akron with a degree in mathematics, Harold toiled for IBM before he came to our company in 1994. A consummate numbers guy, he has conducted numerous engineering studies on a wide variety of SiteWatch products. When it comes to figuring out the meaning of figures, Harold is clearly our number one choice. Connect with Harold on LinkedIn.
