✦ LIBER ✦

Coal mined by machines

No coin nor oath required. For personal study only.

📜 SIMILAR VOLUMES

COAL-MINING MACHINES OPERATED BY ELECTRI

📂 Article 📅 1889 🏛 American Association for the Advancement of Scienc 🌐 English ⚖ 61 KB

Machine mining of coal

📂 Article 📅 1913 🏛 Elsevier Science 🌐 English ⚖ 66 KB

COAL MINED IN 1915

📂 Article 📅 1917 🏛 School Science and Mathematics Association 🌐 English ⚖ 51 KB

ANTHRACITE COAL MINED IN 1916

📂 Article 📅 1917 🏛 American Association for the Advancement of Scienc 🌐 English ⚖ 111 KB

CONTROL OF DUST FROM CONTINUOUS COAL MIN

✍ L. Karl Legatski; Jack D. Brady 📂 Article 📅 1972 🏛 John Wiley and Sons 🌐 English ⚖ 713 KB

Mining coal by geochemical methods

✍ F. A. Baryshnikov; I. L. Ruzinova 📂 Article 📅 1966 🏛 Springer 🌐 English ⚖ 148 KB