01022cam a22002651 4500 l 51000155 DLC 20260227111542.0 910916s1951 dcua f000 0 eng c l 51000155 (OCoLC)24383180 U.S. Dept. of Labor. Library CLU CLU DLC premarc HD8051 .A62 no. 1023 331.823 McElroy, Frank S. (Frank Shafer) Injuries and accident causes in the manufacture of clay construction products [by Frank S. McElroy and George R. McCormack] Washington, D.C., U.S. Govt. Print. Off. [1951] iv, 49 p. diagrs., tables. 26 cm. United States. Bureau of Labor Statistics. Bulletin, no. 1023 Clay industries Accidents. Clay industries Safety measures. McCormack, George R. (George Robertson), joint author. Bulletin of the United States Bureau of Labor Statistics ; 1023. 36750 36750