Experiments on multiple short-delay blasting of coal (in two parts) : part I / by Irving Hartmann, John Nagy, and H.C. Howarth.

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Main Author: Hartmann, Irving, 1905-
Corporate Author: International Conference of Directors of Mine Safety Research
Other Authors: Nagy, John, Howarth, H. C. (Henry C.), 1879-
Format: Government Document Conference Proceeding Book
Language:English
Published: Washington, D.C. : U.S. Dept. of the Interior, Bureau of Mines, 1952.
Series:Report of investigations (United States. Bureau of Mines) ; 4868.
Subjects: