Electric-light Fitting

Electric-light Fitting

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r re shown in the diagram ; but that, if any one of the three switches be moved to the position indicated by the dotted lines, the circuit through the lamps will be completed. As shown in B, 1 and 5 are the ordinary two-way switches, and 2, 3 andanbsp;...

Title:Electric-light Fitting
Author:S. C. Batstone
Publisher: - 1914


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