Concrete in the country / [American Cement Company]. (1910)
American Cement Company · Association of American Portland Cement Manufacturers · leaf 77
according to the directions given under Sidewalks page 28 ndFEHo,Ko FLOons, page 43. Slope the floors. H inch to each f<^H„ Lgth o tidthso that he d,p running off the anintals will be saved and returned to the tankCorrugate or groove the floor to the deoth of U in.h o u direction. During the… … 7 / / / ^ / /