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Cooling of mine air
A proportional temperature controller with automatic shutoff
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Published Year
1920-1929 (1)
1980-1989 (1)
Subject
Temperature control (2) *
Cooling (1)
Humidity (1)
Mine atmospheres (1)
Mine ventilation (1)
Mine ventilation--Measurement (1)
Mine ventilation--Safety measures (1)
Author
Holland, Philip W., (1)
Houghten, F. C. (1)
Lucich, George M. (1)
Read, Thomas Thornton, (1)
