Machinery, equipment, parts and bases therefor, and supplies that are utilized in the authentic mining manufacturing to carry or communicate the merchandise or manufacturing employees, or to handle or store the thing during the manufacturing are regarded as directly utilized in mining operations.
Mobile - Dozers. A bulldozer is a piece of tracked heavy equipment aka crawler and it is equipped with a push blade used to move large quantities of soil, rock, or other such material during mining, road development, construction or conversion type work.
Mining Tools of the late 1800s - Daryl Burkhard: Official ...
Tools of the Trade. This part of the collection covers a whole range of objects, from small gas detectors to large industrial machines, which were used both above and below ground in the coal mining industry.