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Production of explosives in the United States during the calendar year 1919 :with notes on coal-mine accidents due to explosives and list of permissible explosives tested to May 31, 1920

Production of explosives in the United States during the calendar year 1920 :with notes on coal-mine accidents due to explosives

Production of explosives in the United States :during the calendar year 1921: with notes on mine accidents due to explosives

Production of explosives in the United States :during the calendar year 1928

Production of explosives in the United States :during the calendar year 1932

Production of explosives in the United States during the calendar year 1938

Production of explosives in the United States during the calendar year 1939


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