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JAMES F. CASEY Editor
RICHARD PRATT SYLVIA Associate Editor
DOROTHY P. FERGUSON Managing Editor
ELIZABETH CRIDLAND Assistant Managing Editor
ROLLIN NELSON Art Director
JOAN NITSCHKE Production Manager
RAYMOND J. CASTELLANOS Circulation Manager
JOSEPH F. COSGROVE Publisher
CORRESPONDENTS Robert Burns. Eastern R. L. Nailen, Midwestern David R. Frazier. Intermountain West Cliff Dektar, Pacific Coast Paul C. Ditzel, Pacific Coast Robert Swan, Pacific Coast Donal Baird. Canadian
ABP
FIRE ENGINEERING (ISSN 00152587), November, 1980, Vol. 133, No 11. Member. American Business Press and Audit Bureau of Circulations. Published monthly by Technical Publishing, a Company of the Dun & Bradstreet Corporation. James B. Tafel, Chairman, John K. Abely, President. EXECUTIVE, EDITORIAL AND ADVERTISING OFFICES: 666 Fifth Avenue, New York, N. Y. 10103. Printed in Easton, Pa. 18042,
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