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Some information on the transportation, storage, and handling of lubricants in and about coal mines
Some preliminary data on methods for allaying coal dust in tipples and cleaning plants
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Published Year
1940-1949 (2) *
Subject
Coal-mining machinery (1)
Coal-mining machinery--Lubrication (1)
Lubrication and lubricants (1)
Mine dust--United States (1)
Mine safety--United States (1)
Author
Kingery, D. S. (2) *
