共 50 条
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- [46] Mining methods of United Verde Extension Mining Co TRANSACTIONS OF THE AMERICAN INSTITUTE OF MINING AND METALLURGICAL ENGINEERS, 1920, 61 : 188 - 200
- [47] Safety methods and organization of United States Coal & Coke Co. TRANSACTIONS OF THE AMERICAN INSTITUTE OF MINING AND METALLURGICAL ENGINEERS, 1915, 51 : 319 - 344
- [48] THE ALEXANDER MILBURN CO. vs. DAVISBOURNONVILLE CO. JOURNAL OF THE PATENT OFFICE SOCIETY, 1926, 8 (09): : 413 - 424
- [49] Swim preperation of moctezuma Copper Co., Nacozari, Sonora state Mexico ZEITSCHRIFT DES VEREINES DEUTSCHER INGENIEURE, 1929, 73 : 26 - 28