Coal-mining machinery.

Highwall mining Porathur, John Loui 2017 Practical machine mining Williams, Morgan David 1928 Strength, cuttability, and workability of coal Bilgin, Nuh 2019 The mine electrical fitte Mikheyev Y. Year not listed The mine electrical fitter Mikheev, I︠U︡riĭ Aleksandrovich 1965 The mine electrical fitter Mikheev, I︠U︡riĭ Aleksandrovich 1965