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Ventilation of manholes.
Ventilation of manholes.
Investigation during 1937 of combustibles in manholes in Boston, Mass.
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Published Year
1930-1939 (3)
Subject
Manholes (3) *
Mine ventilation (2)
Air (1)
Author
Campbell, John. (3) *
Jones, G. W. (3)
Miller, W. E. (2)
Yant, W. P. (2)
Goodwin, F. M. (1)
Huff, W. J. (1)
