The telephone booth directories of Qwest Communications International must withstand climatic extremes from 100+°F Arizona summers to sub-zero Montana winters as well as rain, dust storms and hail. They also must resist vandalism and the routine wear and tear of thousands of opening-closing cycles per year. A proprietary swing-up holder shields the directories from destruction by encasing them in binders made of thermoformed KYDEX ® thermoplast

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