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Accidents at metallurgical works in the United States during the calendar years 1918
Accidents at metallurgical works in the United States during the calendar year 1919
Accidents at metallurgical works in the United States :during the calendar year 1920
Accidents at metallurgical works in the United States :during the calendar year 1921
Accidents at metallurgical works in the United States :during the calendar year 1922
Accidents at metallurgical works in the United States :during the calendar year 1923
Accidents at metallurgical works in the United States :during the calendar year 1924
Accidents at metallurgical works in the United States :during the calendar year 1925
Accidents at metallurgical works :during the calendar year 1926
Accidents at metallurgical works in the United States :during the calendar year 1927