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1 Sketches of slab and beam requirements, RB11, RB12, 8 inch slab, RB10, Beam RB51927; 1928; 1929; 1930; 1931; 1932; 1933; 1934; 1935; 1936; 1937; 1938; 1939; 1940; 1941; 1942; 1943Image/StillImage
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