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WHITNEY SYSTEMS INC. is a New York, NY-based company in the Manufacturing sector.
Endurapack is a Westbury, NY-based company in the Manufacturing sector.
Harcourt Inc is a Troy, MO-based company in the Manufacturing sector.
Warneke Paper Box Co is a Denver, CO-based company in the Manufacturing sector.
OPM has a state-of-the-art manufacturing facility and is the only paperback book manufacturer to use exclusively the offset printing process for text reproduction. The result: OPM produces the highest quality mass-market and digest book products on the