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Cooling of mine air

A proportional temperature controller with automatic shutoff

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)

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