Stairs and stair enclosures, fire escapes, ramps, horizontal exits, aisles and corridors, elevators, alarm systems, etc; schools, department stores, factories, hospitals, etc. Approved as American Tentative Standard A9 -- 1935 by Am Standards Assn. (75¢)
Building exits code
Building Exits Code
Building Exits Code ; 3rd edition
1934
96 pages
Book
English
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Survey of traffic volumes through building exits
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