Interstate Paper Supply Co

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For more than 80 years, Harrington Signal Inc. has been providing state-of-the-art fire alarm and mass notification systems. It serves a wide array of markets, such as commercial, institutional, military and industrial. The company's fire alarm and mass notification systems are installed worldwide in universities, manufacturing facilities, airports, hotels, textile mills, military bases and K-12 school buildings. Harrington Signal Inc. also provides one of the industry leading technical support services, training and customer services to all its clients and distributors. It is an ISO 9001:2000 certified company.