by William M. McKewan
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Baseline tensile testing at the Wire Rop...
Bending fatigue test 1 on a 2-inch 6x25 ...
Retractable Guidance System for Mine Sha...
Die Seilscheibengerüste der Bergwerks-F...
Electric winders
Pennsylvania coal mine tipples
Bending fatigue tests 2 and 3 on a 2-inc...