Weymouth, F Marten Drum Armatures and Commutators, Theory and Practice: A Complete Treatise on the Theory and Construction of Drum Winding, and of Commutators for ... Principal Points Involved in Their Design; A
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Drum Armatures and Commutators, Theory and Practice: A Complete Treatise on the Theory and Construction of Drum Winding, and of Commutators for ... Principal Points Involved in Their Design; A