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Author: Underwriters Laboratories, Incorporated
Title: Report of Research on Emergency Signaling Devices for Use by the Hearing Impaired.
Coporate: Underwriters Labs., Inc., Northbrook, IL
Report: US187; 89NK20252; Subject 1971, March 20, 1991, 93 p.
Keywords: signals | devices | handicapped | fire alarm systems | vibration | fans | safety standards
Identifiers: flashing lights; air movement; vibrators