One Hundred Years of Federal Mining Safety and Health Research
One Hundred Years of Federal Mining Safety and Health Research
One Hundred Years of Federal Mining Safety and Health Research
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Figure 16. U.S. Bureau <strong>of</strong> Mines exhibit at San Francisco Exposition, CA, 1915.<br />
Figure 17. Mine rescue exhibition at Forbes Field, Pittsburgh, PA, circa 1918.<br />
Figure1 18. USBM exhibit at Century <strong>of</strong> Progress exhibition in Chicago, IL, 1933.<br />
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