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Safety education at iron mines of the Lake Superior region

Safety inspections in and around iron mines in the Lake Superior district

Safety standards and safety suggestions at iron mines in the Lake Superior region

Medical service, accident reports, compensation, and welfare at iron mines in the Lake Superior region

Published Year

• 1930-1939 (4) *

Subject

• Iron mines and mining--Safety measures (4)
• Iron mines and mining--Superior, Lake (4) *

Author

• Crawford, Frank Stevens, (4)

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