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Ringelmann smoke chart

Smoke abatement :selections from papers by O. P. Hood

Some fundamentals of smoke abatement

Published Year

• 1930-1939 (3) *

Subject

• Smoke prevention (3) *
• Air--Pollution (1)

Author

• Barkley, J. F. (2)
• Kudlich, Rudolf. (1)
• Ringelmann, Max, (1)

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