WADSWORTH, C. Primary Bcttery Ignition. A simple practical pocket 

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WALLING,' B. T., and MARTIN, JULIUS. Electrical Installations of the 

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WEBB, H. L. A Practical Guide to the Testing of Insulated Wires and 

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WEEKS, R. W. The Design of Alternate-Current Transformer. 



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WEYMOUTH, F. MARTEN. Drum Armatures and Commutators. 

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WILKINSON, H. D. Submarine Cable Laying, Repairing and Testing. 

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WRIGHT, J. Testing, Fault Localization and General Hints for Linemen. 

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