H. P. Greenwald

Born 1893-01-01

Identifiers

Open LibraryOL15488377A

Top Subjects

Mine explosions (2)
Coal mines and mining (1)
Safety measures (1)
Mineral dusts (1)

Books by H. P. Greenwald

Total count: 2

Coal-dust explosibility factors indicated by experimental mine investigations 1911 to 1929

U. S. Govt. print. off.1929-01-01
Experiments to determine the minimum amount of coal-dust required for propagation of a mine explosion

The Bureau1931-01-01