Making Your Stay a Safe One. Case Study: Crowne Plaza Detroit Ponchartrain Potter Electric Signal Company, LLC www.pottersignal.com/casestudies T he Ponchartrain Hotel in Detroit, Michigan, named for the original title given to the area by French settlers, was erected in 1965. After going through many ownership changes, name changes, and eventually closing in 2009, the 25 story tall, 367 room luxury hotel was resurrected in 2012 by

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