Proprietary protective signaling systems, 1979.
Series: NFPA ; 72D; NFPA (Series) ;; no. 72D.
Publisher: National Fire Protection Association
Published: 1979
Place of publication: Boston, MA
Language: eng
Number of pages: 41
Subjects: Fire alarms -- Standards -- United States.
Notes: Includes bibliographical references.
Errata slip inserted.