7 treff

Maps with special reference to the geologic and mineral maps of Arizona
J.D. Forrester and Richard T. Moore
Bok Engelsk 1962
Proceedings of Coal Conference at Missouri School of Mines and Metallurgy, December 3-4, 1953
Coal Conference
Bok Engelsk 1954
The process of underground electrocarbonization
J.D. Forrester and Erich Sarapuu
Bok Engelsk 1952
Mining and mineral resources of Missouri
Forrester, J.D.
Bok Engelsk 1948
The effects of rope speed and moisture on the use of scrapers in mining
J.D. Forrester and Ronald L. Carmicgael
Bok Engelsk 1947
A study of mine scraper buckets and their efficiency
J.D. Forrester and Austin B. Clayton
Bok Engelsk 1946
A comparative analysis of some recent mining practices in the tri-state mining district
J.D. Forrester and J.F.A. Taylor
Bok Engelsk 1945