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What was the name of the earliest machine for mining iron ore?
The earliest machine for mining iron ore was called disc shears. According to relevant data, the first pneumatic disc shearer was designed by British engineer Walker and successfully manufactured in 1868. 19 In the 1980s, the United States successfully drilled hundreds of oil wells with steam-powered percussion drill. 1907 drilled oil wells and natural gas wells with roller cone, starting with 1937.